| SCCS Opinion |
NOAEL |
=0.052 |
mg/kg bw/day |
rat |
oral |
- |
NOAEL study |
{"dose":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x...","effect":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x 3/100) / 60 = 0.052 mg/kg bw/day No observed adverse effect level NOAEL = 10 mg/kg bw/day (12m-oral-rat) Margin of Safety NOAEL / SED = 192 3.3.14 Discussion It is the opinion of the SCCP that the submission lacks a number of data with respect to the identification, stability and physico-chemical data of the three quaternary ammonium compounds under study. The lacking data as mentioned in the present opinion as General comments on Section 3.1 are required for completion of the dossier. With regard to the toxicological properties of P72, the table in the Annex to this opini","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_005"} |
| SCCS Opinion |
NOAEL |
=0.052 |
mg/kg bw/day |
rat |
oral |
- |
NOAEL study |
{"dose":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x...","effect":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x 3/100) / 60 = 0.052 mg/kg bw/day No observed adverse effect level NOAEL = 10 mg/kg bw/day (12m-oral-rat) Margin of Safety NOAEL / SED = 192 3.3.14 Discussion It is the opinion of the SCCP that the submission lacks a number of data with respect to the identification, stability and physico-chemical data of the three quaternary ammonium compounds under study. The lacking data as mentioned in the present opinion as General comments on Section 3.1 are required for completion of the dossier. With regard to the toxicological properties of P72, the table in the Annex to this opini","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_005"} |
| SCCS Opinion |
NOAEL |
=0.052 |
mg/kg bw/day |
rat |
oral |
- |
NOAEL study |
{"dose":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x...","effect":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x 3/100) / 60 = 0.052 mg/kg bw/day No observed adverse effect level NOAEL = 10 mg/kg bw/day (12m-oral-rat) Margin of Safety NOAEL / SED = 192 3.3.14 Discussion It is the opinion of the SCCP that the submission lacks a number of data with respect to the identification, stability and physico-chemical data of the three quaternary ammonium compounds under study. The lacking data as mentioned in the present opinion as General comments on Section 3.1 are required for completion of the dossier. With regard to the toxicological properties of P72, the table in the Annex to this opini","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_005"} |
| SCCS Opinion |
NOAEL |
=0.052 |
mg/kg bw/day |
rat |
oral |
- |
NOAEL study |
{"dose":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x...","effect":"SCCP/0000/00 Opinion on alkyl (C16, C18, C22) trimethylammonium chloride, non-preservative uses 54 CALCULATION OF THE MARGIN OF SAFETY Maximum amount of ingredient applied daily = 99.1 mg/day Typical human body weight = 60kg Maximum absorption through the skin = 3.15% (in vivo rat study laurtrimonium bromide) Systemic exposure dose (SED) (99.1 x 3/100) / 60 = 0.052 mg/kg bw/day No observed adverse effect level NOAEL = 10 mg/kg bw/day (12m-oral-rat) Margin of Safety NOAEL / SED = 192 3.3.14 Discussion It is the opinion of the SCCP that the submission lacks a number of data with respect to the identification, stability and physico-chemical data of the three quaternary ammonium compounds under study. The lacking data as mentioned in the present opinion as General comments on Section 3.1 are required for completion of the dossier. With regard to the toxicological properties of P72, the table in the Annex to this opini","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_005"} |
| SCCS Opinion |
NOAEL |
=0.8 |
mg/kg |
rat |
oral |
- |
developmental toxicity |
{"citation":"Ref.: 42 3","dose":"After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 34 Conclusion Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 42 3.3.9. Toxicokinetics Cetrimonium bromide Isomaa (43) reported a toxicokinetic study in rats using 14C-labeled cetrimonium bromide. After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","page":34,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_004"} |
| SCCS Opinion |
NOAEL |
=0.8 |
mg/kg |
rat |
oral |
- |
developmental toxicity |
{"citation":"Ref.: 42 3","dose":"After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 34 Conclusion Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 42 3.3.9. Toxicokinetics Cetrimonium bromide Isomaa (43) reported a toxicokinetic study in rats using 14C-labeled cetrimonium bromide. After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","page":34,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_004"} |
| SCCS Opinion |
NOAEL |
=0.8 |
mg/kg |
rat |
oral |
- |
developmental toxicity |
{"citation":"Ref.: 42 3","dose":"After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 34 Conclusion Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 42 3.3.9. Toxicokinetics Cetrimonium bromide Isomaa (43) reported a toxicokinetic study in rats using 14C-labeled cetrimonium bromide. After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","page":34,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_004"} |
| SCCS Opinion |
NOAEL |
=0.8 |
mg/kg |
rat |
oral |
- |
developmental toxicity |
{"citation":"Ref.: 42 3","dose":"After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 34 Conclusion Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 42 3.3.9. Toxicokinetics Cetrimonium bromide Isomaa (43) reported a toxicokinetic study in rats using 14C-labeled cetrimonium bromide. After administration of 0.8 mg/kg by oral gavage, about 80% of the dose of radioactivity was found in the gastrointestinal tract 8 hours after the administration, only small amounts","page":34,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_004"} |
| SCCS Opinion |
NOAEL |
=2.5 |
% |
rat |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartri","dose":"Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose:","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 33 Conclusion The skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryofoetal toxicity was 40 mg cetrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose: 0.1, 0.9, 1.5 and 2.5% in distilled water at 0.5 ml/rat (approximately 4.5, 7.5, and 12.5 mg/kg bw/day), by dermal a","page":33,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_003"} |
| SCCS Opinion |
NOAEL |
=2.5 |
% |
rat |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartri","dose":"Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose:","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 33 Conclusion The skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryofoetal toxicity was 40 mg cetrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose: 0.1, 0.9, 1.5 and 2.5% in distilled water at 0.5 ml/rat (approximately 4.5, 7.5, and 12.5 mg/kg bw/day), by dermal a","page":33,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_003"} |
| SCCS Opinion |
NOAEL |
=2.5 |
% |
rat |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartri","dose":"Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose:","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 33 Conclusion The skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryofoetal toxicity was 40 mg cetrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose: 0.1, 0.9, 1.5 and 2.5% in distilled water at 0.5 ml/rat (approximately 4.5, 7.5, and 12.5 mg/kg bw/day), by dermal a","page":33,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_003"} |
| SCCS Opinion |
NOAEL |
=2.5 |
% |
rat |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartri","dose":"Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose:","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 33 Conclusion The skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryofoetal toxicity was 40 mg cetrimonium chloride/kg bw/day. Comment It was not possible to evaluate the study as only a summary was provided. Ref.: 41 b) Steartrimonium chloride Guideline: / Species/strain: CFY Sprague-Dawley rat Group size: 20 mated female rats/group Test substance: Trimethylstearylammonium chloride (steartrimonium chloride) Batch: / Dose: 0.1, 0.9, 1.5 and 2.5% in distilled water at 0.5 ml/rat (approximately 4.5, 7.5, and 12.5 mg/kg bw/day), by dermal a","page":33,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_003"} |
| SCCS Opinion |
NOAEL |
=3.3 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: 3.3.14 Discussion","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_015"} |
| SCCS Opinion |
NOAEL |
=3.3 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: 3.3.14 Discussion","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_015"} |
| SCCS Opinion |
NOAEL |
=3.3 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: 3.3.14 Discussion","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_015"} |
| SCCS Opinion |
NOAEL |
=3.3 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: 3.3.14 Discussion","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_015"} |
| SCCS Opinion |
NOAEL |
=9.9 |
% |
- |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylste","effect":"ere no significant differences from concurrent control values in respect of the incidence of malformed or anomalous young or of litters containing affected young. Types of malformations or anomalies observed were within the range of historical control values for this strain. Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day (highest concentration tested). Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylstearylammonium chloride were investigated upon topical application of concentrations up to 9.9%, 6.6% and 2.5%, respectively. The authors conclude that, within the limitations of the study, no","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_004"} |
| SCCS Opinion |
NOAEL |
=9.9 |
% |
- |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylste","effect":"ere no significant differences from concurrent control values in respect of the incidence of malformed or anomalous young or of litters containing affected young. Types of malformations or anomalies observed were within the range of historical control values for this strain. Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day (highest concentration tested). Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylstearylammonium chloride were investigated upon topical application of concentrations up to 9.9%, 6.6% and 2.5%, respectively. The authors conclude that, within the limitations of the study, no","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_004"} |
| SCCS Opinion |
NOAEL |
=9.9 |
% |
- |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylste","effect":"ere no significant differences from concurrent control values in respect of the incidence of malformed or anomalous young or of litters containing affected young. Types of malformations or anomalies observed were within the range of historical control values for this strain. Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day (highest concentration tested). Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylstearylammonium chloride were investigated upon topical application of concentrations up to 9.9%, 6.6% and 2.5%, respectively. The authors conclude that, within the limitations of the study, no","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_004"} |
| SCCS Opinion |
NOAEL |
=9.9 |
% |
- |
dermal |
- |
developmental toxicity |
{"citation":"Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylste","effect":"ere no significant differences from concurrent control values in respect of the incidence of malformed or anomalous young or of litters containing affected young. Types of malformations or anomalies observed were within the range of historical control values for this strain. Skin changes at the application sites were considered to be a result of local irritation and not indicative of systemic toxicity. Under the test conditions used, steartrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was about 12.5 mg steartrimonium chloride/kg bw/day (highest concentration tested). Ref.: 1 A publication of 1983 summarizes a study in which the potential embryotoxic effects of dimethyldistearylammonium chloride, benzyldimethylstearylammonium chloride and trimethylstearylammonium chloride were investigated upon topical application of concentrations up to 9.9%, 6.6% and 2.5%, respectively. The authors conclude that, within the limitations of the study, no","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_004"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive tox","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_007"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg bw/day |
- |
oral |
28-day |
irritation |
{"citation":"Ref.: 34 (= pp","dose":"There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate.","effect":"pically disappeared by the end of the study. There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate. The US National Toxicology Programme report concludes that the toxic response only consists of skin irritation, and proposes a NOAEL value of 10 mg/kg bw/day for systemic effects. Ref.: 34 (= pp.170-171 of Ref.1) C. Steartrimonium chloride - 28-day oral/dermal administration No data submitted","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_002"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive tox","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_007"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive tox","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_007"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg bw/day |
- |
oral |
28-day |
irritation |
{"citation":"Ref.: 34 (= pp","dose":"There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate.","effect":"pically disappeared by the end of the study. There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate. The US National Toxicology Programme report concludes that the toxic response only consists of skin irritation, and proposes a NOAEL value of 10 mg/kg bw/day for systemic effects. Ref.: 34 (= pp.170-171 of Ref.1) C. Steartrimonium chloride - 28-day oral/dermal administration No data submitted","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_002"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg bw/day |
- |
oral |
28-day |
irritation |
{"citation":"Ref.: 34 (= pp","dose":"There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate.","effect":"pically disappeared by the end of the study. There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate. The US National Toxicology Programme report concludes that the toxic response only consists of skin irritation, and proposes a NOAEL value of 10 mg/kg bw/day for systemic effects. Ref.: 34 (= pp.170-171 of Ref.1) C. Steartrimonium chloride - 28-day oral/dermal administration No data submitted","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_002"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"ide, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive tox","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_007"} |
| SCCS Opinion |
NOAEL |
=10 |
mg/kg bw/day |
- |
oral |
28-day |
irritation |
{"citation":"Ref.: 34 (= pp","dose":"There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate.","effect":"pically disappeared by the end of the study. There were no treatment-related effects on body weight, haematology, organ weight, gross necropsy findings or histopathology, except for treated areas of the skin that showed mild to marked acanthosis with active mitosis, hyperkeratosis, and partial to extensive necrosis of the epidermis and hair follicles, partly with encrustation and exudate. The US National Toxicology Programme report concludes that the toxic response only consists of skin irritation, and proposes a NOAEL value of 10 mg/kg bw/day for systemic effects. Ref.: 34 (= pp.170-171 of Ref.1) C. Steartrimonium chloride - 28-day oral/dermal administration No data submitted","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_002"} |
| SCCS Opinion |
NOAEL |
=12.5 |
mg/kg bw/day |
rat |
dermal |
developmental |
developmental toxicity |
{"citation":"Ref.: 41 (= pp","dose":"as observed primarily in the mid and high dose groups.","effect":"as observed primarily in the mid and high dose groups. No treatment-related maternal body weight or food intake effects were noted. A slight increase in congested lungs was observed in the high dose group at necropsy. The incidence of foetal malformation and genetic and developmental variation in the treated groups was comparable to that of the control group. No other treatment-related effects were noted. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day. Ref.: 41 (= pp.222-224 of Ref.1) B. Steartrimonium chloride - dermal administration, rat 20 mated female Sprague Dawley rats per group are reported to be exposed for days 6 to 15 of gestation to steartrimonium chloride at dosage levels of 4.5, 7.5 and 12.5 mg/kg bw/day. The test substance was applied with a syringe and gently massaged into the shaved area (4 x 4 cm) of skin in the scapula region for no","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_003"} |
| SCCS Opinion |
NOAEL |
=12.5 |
mg/kg bw/day |
rat |
dermal |
developmental |
developmental toxicity |
{"citation":"Ref.: 41 (= pp","dose":"as observed primarily in the mid and high dose groups.","effect":"as observed primarily in the mid and high dose groups. No treatment-related maternal body weight or food intake effects were noted. A slight increase in congested lungs was observed in the high dose group at necropsy. The incidence of foetal malformation and genetic and developmental variation in the treated groups was comparable to that of the control group. No other treatment-related effects were noted. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day. Ref.: 41 (= pp.222-224 of Ref.1) B. Steartrimonium chloride - dermal administration, rat 20 mated female Sprague Dawley rats per group are reported to be exposed for days 6 to 15 of gestation to steartrimonium chloride at dosage levels of 4.5, 7.5 and 12.5 mg/kg bw/day. The test substance was applied with a syringe and gently massaged into the shaved area (4 x 4 cm) of skin in the scapula region for no","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_003"} |
| SCCS Opinion |
NOAEL |
=12.5 |
mg/kg bw/day |
rat |
dermal |
developmental |
developmental toxicity |
{"citation":"Ref.: 41 (= pp","dose":"as observed primarily in the mid and high dose groups.","effect":"as observed primarily in the mid and high dose groups. No treatment-related maternal body weight or food intake effects were noted. A slight increase in congested lungs was observed in the high dose group at necropsy. The incidence of foetal malformation and genetic and developmental variation in the treated groups was comparable to that of the control group. No other treatment-related effects were noted. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day. Ref.: 41 (= pp.222-224 of Ref.1) B. Steartrimonium chloride - dermal administration, rat 20 mated female Sprague Dawley rats per group are reported to be exposed for days 6 to 15 of gestation to steartrimonium chloride at dosage levels of 4.5, 7.5 and 12.5 mg/kg bw/day. The test substance was applied with a syringe and gently massaged into the shaved area (4 x 4 cm) of skin in the scapula region for no","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_003"} |
| SCCS Opinion |
NOAEL |
=12.5 |
mg/kg bw/day |
rat |
dermal |
developmental |
developmental toxicity |
{"citation":"Ref.: 41 (= pp","dose":"as observed primarily in the mid and high dose groups.","effect":"as observed primarily in the mid and high dose groups. No treatment-related maternal body weight or food intake effects were noted. A slight increase in congested lungs was observed in the high dose group at necropsy. The incidence of foetal malformation and genetic and developmental variation in the treated groups was comparable to that of the control group. No other treatment-related effects were noted. Under the test conditions used, cetrimonium chloride was found to be non-foetotoxic and non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day. Ref.: 41 (= pp.222-224 of Ref.1) B. Steartrimonium chloride - dermal administration, rat 20 mated female Sprague Dawley rats per group are reported to be exposed for days 6 to 15 of gestation to steartrimonium chloride at dosage levels of 4.5, 7.5 and 12.5 mg/kg bw/day. The test substance was applied with a syringe and gently massaged into the shaved area (4 x 4 cm) of skin in the scapula region for no","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_003"} |
| SCCS Opinion |
NOAEL |
=24 |
% |
rabbit |
dermal |
28-day |
irritation |
{"citation":"Ref.: 33 B","dose":"Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity.","effect":"l results revealed no treatment-related changes in any group. Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of some systemic toxicity. As such, the dosage of 100 mg/kg bw/day was considered to be the no-observed-effect- level (NOEL) of Dehyquart A-CA (24-26% cetrimonium chloride in water) in this study. Ref.: 33 B. Cetrimonium chloride - 28-day dermal administration in the rabbit In a study from 1978, 5 New Zealand albino rabbits/sex/group were treated cutaneously with the test substance for 5 days/week for 4 weeks at a dose of 0 or 10 mg/kg bw/day (0 or 0.5% aqueous solutions, respectively). The dosage volume was 2.0 ml/kg bw with an approximate exposure period of 6.5 to 7 hours. Body hair was clipped as needed on approximately 25% of the","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_001"} |
| SCCS Opinion |
NOAEL |
=24 |
% |
rabbit |
dermal |
28-day |
irritation |
{"citation":"Ref.: 33 B","dose":"Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity.","effect":"l results revealed no treatment-related changes in any group. Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of some systemic toxicity. As such, the dosage of 100 mg/kg bw/day was considered to be the no-observed-effect- level (NOEL) of Dehyquart A-CA (24-26% cetrimonium chloride in water) in this study. Ref.: 33 B. Cetrimonium chloride - 28-day dermal administration in the rabbit In a study from 1978, 5 New Zealand albino rabbits/sex/group were treated cutaneously with the test substance for 5 days/week for 4 weeks at a dose of 0 or 10 mg/kg bw/day (0 or 0.5% aqueous solutions, respectively). The dosage volume was 2.0 ml/kg bw with an approximate exposure period of 6.5 to 7 hours. Body hair was clipped as needed on approximately 25% of the","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_001"} |
| SCCS Opinion |
NOAEL |
=24 |
% |
rabbit |
dermal |
28-day |
irritation |
{"citation":"Ref.: 33 B","dose":"Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity.","effect":"l results revealed no treatment-related changes in any group. Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of some systemic toxicity. As such, the dosage of 100 mg/kg bw/day was considered to be the no-observed-effect- level (NOEL) of Dehyquart A-CA (24-26% cetrimonium chloride in water) in this study. Ref.: 33 B. Cetrimonium chloride - 28-day dermal administration in the rabbit In a study from 1978, 5 New Zealand albino rabbits/sex/group were treated cutaneously with the test substance for 5 days/week for 4 weeks at a dose of 0 or 10 mg/kg bw/day (0 or 0.5% aqueous solutions, respectively). The dosage volume was 2.0 ml/kg bw with an approximate exposure period of 6.5 to 7 hours. Body hair was clipped as needed on approximately 25% of the","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_001"} |
| SCCS Opinion |
NOAEL |
=24 |
% |
rabbit |
dermal |
28-day |
irritation |
{"citation":"Ref.: 33 B","dose":"Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity.","effect":"l results revealed no treatment-related changes in any group. Conclusion The study authors conclude that the forestomach and stomach changes observed at 300 mg/kg bw/day can be considered to be a result of local irritation and therefore are not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of some systemic toxicity. As such, the dosage of 100 mg/kg bw/day was considered to be the no-observed-effect- level (NOEL) of Dehyquart A-CA (24-26% cetrimonium chloride in water) in this study. Ref.: 33 B. Cetrimonium chloride - 28-day dermal administration in the rabbit In a study from 1978, 5 New Zealand albino rabbits/sex/group were treated cutaneously with the test substance for 5 days/week for 4 weeks at a dose of 0 or 10 mg/kg bw/day (0 or 0.5% aqueous solutions, respectively). The dosage volume was 2.0 ml/kg bw with an approximate exposure period of 6.5 to 7 hours. Body hair was clipped as needed on approximately 25% of the","page":35,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_001"} |
| SCCS Opinion |
NOAEL |
=40 |
- |
rat |
dermal |
Developmental |
developmental toxicity |
{"dose":"Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed.","effect":"cetrimonium chloride only) were all negative. Testing was limited to low concentrations due to the high cytotoxicity. Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed. Cetrimonium chloride was found to be non-foetotoxic and non-teratogenic in both species. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day for the rabbit and 12.5 mg cetrimonium chloride/kg bw/day for the rat. Local toxicity As is the case for the majority of quaternary ammonium compounds, concentrated cetrimonium chloride, steartrimonium chloride and behentrimonium chloride are corrosive to skin and eyes. This is confirmed by the presented skin and eye irritation studies on rabbits with different formulations containing the quaternary ammo","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_010"} |
| SCCS Opinion |
NOAEL |
=40 |
- |
rat |
dermal |
Developmental |
developmental toxicity |
{"dose":"Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed.","effect":"cetrimonium chloride only) were all negative. Testing was limited to low concentrations due to the high cytotoxicity. Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed. Cetrimonium chloride was found to be non-foetotoxic and non-teratogenic in both species. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day for the rabbit and 12.5 mg cetrimonium chloride/kg bw/day for the rat. Local toxicity As is the case for the majority of quaternary ammonium compounds, concentrated cetrimonium chloride, steartrimonium chloride and behentrimonium chloride are corrosive to skin and eyes. This is confirmed by the presented skin and eye irritation studies on rabbits with different formulations containing the quaternary ammo","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_010"} |
| SCCS Opinion |
NOAEL |
=40 |
- |
rat |
dermal |
Developmental |
developmental toxicity |
{"dose":"Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed.","effect":"cetrimonium chloride only) were all negative. Testing was limited to low concentrations due to the high cytotoxicity. Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed. Cetrimonium chloride was found to be non-foetotoxic and non-teratogenic in both species. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day for the rabbit and 12.5 mg cetrimonium chloride/kg bw/day for the rat. Local toxicity As is the case for the majority of quaternary ammonium compounds, concentrated cetrimonium chloride, steartrimonium chloride and behentrimonium chloride are corrosive to skin and eyes. This is confirmed by the presented skin and eye irritation studies on rabbits with different formulations containing the quaternary ammo","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_010"} |
| SCCS Opinion |
NOAEL |
=40 |
- |
rat |
dermal |
Developmental |
developmental toxicity |
{"dose":"Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed.","effect":"cetrimonium chloride only) were all negative. Testing was limited to low concentrations due to the high cytotoxicity. Developmental toxicity Finally, dermal developmental toxicity studies with cetrimonium chloride in the rabbit and the rat revealed dose-dependent irritative effects, though no increased incidence of foetal malformations nor developmental variations in the treated groups compared to controls were observed. Cetrimonium chloride was found to be non-foetotoxic and non-teratogenic in both species. The NOEL for maternal systemic toxicity and embryo-foetal toxicity appeared to be 40 mg cetrimonium chloride/kg bw/day for the rabbit and 12.5 mg cetrimonium chloride/kg bw/day for the rat. Local toxicity As is the case for the majority of quaternary ammonium compounds, concentrated cetrimonium chloride, steartrimonium chloride and behentrimonium chloride are corrosive to skin and eyes. This is confirmed by the presented skin and eye irritation studies on rabbits with different formulations containing the quaternary ammo","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_010"} |
| SCCS Opinion |
NOAEL |
=41 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 41: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_012"} |
| SCCS Opinion |
NOAEL |
=41 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 41: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_012"} |
| SCCS Opinion |
NOAEL |
=41 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 41: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_012"} |
| SCCS Opinion |
NOAEL |
=41 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 41: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity","page":41,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_012"} |
| SCCS Opinion |
NOAEL |
=42 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 42: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_013"} |
| SCCS Opinion |
NOAEL |
=42 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 42: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_013"} |
| SCCS Opinion |
NOAEL |
=42 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 42: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_013"} |
| SCCS Opinion |
NOAEL |
=42 |
- |
- |
- |
- |
developmental toxicity |
{"effect":"Unlabeled table on page 42: non-teratogenic. The NOEL for maternal systemic toxicity and embryo-foetal toxicity was","page":42,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_013"} |
| SCCS Opinion |
NOAEL |
=45 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract obser","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_006"} |
| SCCS Opinion |
NOAEL |
=45 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract obser","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_006"} |
| SCCS Opinion |
NOAEL |
=45 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract obser","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_006"} |
| SCCS Opinion |
NOAEL |
=45 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day.","effect":"__________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract obser","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_006"} |
| SCCS Opinion |
NOAEL |
=54 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: Margin of Safety NOAEL / SED = 192","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_014"} |
| SCCS Opinion |
NOAEL |
=54 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: Margin of Safety NOAEL / SED = 192","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_014"} |
| SCCS Opinion |
NOAEL |
=54 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: Margin of Safety NOAEL / SED = 192","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_014"} |
| SCCS Opinion |
NOAEL |
=54 |
- |
- |
- |
- |
NOAEL study |
{"effect":"Unlabeled table on page 54: Margin of Safety NOAEL / SED = 192","page":54,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_014"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rabbit |
dermal |
Subacute |
repeated dose toxicity |
{"citation":"Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethy","dose":"No macroscopic or microscopic alterations were found in the mid and low dose groups.","effect":"r organs. No macroscopic or microscopic alterations were found in the mid and low dose groups. All treatment-related changes were shown to be reversible following the recovery period. Conclusion The forestomach and stomach changes are considered to be a result of local irritation and not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of minimal systemic toxicity. As such, the dose of 100 mg/kg bw/day was the no-observed-adverse-effect-level (NOAEL) in this study. Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethyl-, chloride 54.5% in aqueous isopropanol Batch: not stated Dose: 0 and 0.5 % w/v: 2 ml/kg (10 mg cetrimonium chloride/kg bw/day) in distilled water for 6.5-7 hours/day, 5 days/week by dermal application Exposure: 4 weeks GLP: / Five rabbits/sex/group were treated cutaneously with the test substance for 5","page":26,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_001"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and s...","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_005"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg/day |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity.","effect":"as been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive toxicity It was not possible to evaluate the studies as only summaries were provided. Skin irritation The results of available skin irritation studies in rabbits are shown in the table. Substance Expos","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_008"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rat |
oral |
28-day |
repeated dose toxicity |
{"dose":"A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects.","effect":"Within three days of ingestion 92% of the radioactivity was excreted via the faeces and 1% via urine. A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects. Slight weight changes in adrenals and spleen and an increase in alanine transaminase (ALT) levels were regarded as possible signs of systemic toxicity and occurred at the highest dosage level tested (300 mg/kg bw/day). 100 mg/kg bw/day was regarded as the NOEL value for Dehyquart A-CA, corresponding to 24-26 mg cetrimonium chloride/kg bw/day. A 28-day dermal repeated dose toxicity study revealed that the only tested dosage of 10 mg cetrimonium chloride/kg bw/day caused no systemic toxicity, but it did cause a number of local effects on the skin at the only tested dose of 0.5%. 10 mg/kg bw/day was thus determined to be the NOAEL (28-dermal-rabbit) for cetrimonium chloride for systemic effects. A chronic (12 months) oral study with cetrimonium bromide in the rat indicat","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_007"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rabbit |
dermal |
Subacute |
repeated dose toxicity |
{"citation":"Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethy","dose":"No macroscopic or microscopic alterations were found in the mid and low dose groups.","effect":"r organs. No macroscopic or microscopic alterations were found in the mid and low dose groups. All treatment-related changes were shown to be reversible following the recovery period. Conclusion The forestomach and stomach changes are considered to be a result of local irritation and not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of minimal systemic toxicity. As such, the dose of 100 mg/kg bw/day was the no-observed-adverse-effect-level (NOAEL) in this study. Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethyl-, chloride 54.5% in aqueous isopropanol Batch: not stated Dose: 0 and 0.5 % w/v: 2 ml/kg (10 mg cetrimonium chloride/kg bw/day) in distilled water for 6.5-7 hours/day, 5 days/week by dermal application Exposure: 4 weeks GLP: / Five rabbits/sex/group were treated cutaneously with the test substance for 5","page":26,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_001"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and s...","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_005"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg/day |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity.","effect":"as been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive toxicity It was not possible to evaluate the studies as only summaries were provided. Skin irritation The results of available skin irritation studies in rabbits are shown in the table. Substance Expos","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_008"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rabbit |
dermal |
Subacute |
repeated dose toxicity |
{"citation":"Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethy","dose":"No macroscopic or microscopic alterations were found in the mid and low dose groups.","effect":"r organs. No macroscopic or microscopic alterations were found in the mid and low dose groups. All treatment-related changes were shown to be reversible following the recovery period. Conclusion The forestomach and stomach changes are considered to be a result of local irritation and not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of minimal systemic toxicity. As such, the dose of 100 mg/kg bw/day was the no-observed-adverse-effect-level (NOAEL) in this study. Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethyl-, chloride 54.5% in aqueous isopropanol Batch: not stated Dose: 0 and 0.5 % w/v: 2 ml/kg (10 mg cetrimonium chloride/kg bw/day) in distilled water for 6.5-7 hours/day, 5 days/week by dermal application Exposure: 4 weeks GLP: / Five rabbits/sex/group were treated cutaneously with the test substance for 5","page":26,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_001"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and s...","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_005"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg/day |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity.","effect":"as been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive toxicity It was not possible to evaluate the studies as only summaries were provided. Skin irritation The results of available skin irritation studies in rabbits are shown in the table. Substance Expos","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_008"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rat |
oral |
28-day |
repeated dose toxicity |
{"dose":"A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects.","effect":"Within three days of ingestion 92% of the radioactivity was excreted via the faeces and 1% via urine. A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects. Slight weight changes in adrenals and spleen and an increase in alanine transaminase (ALT) levels were regarded as possible signs of systemic toxicity and occurred at the highest dosage level tested (300 mg/kg bw/day). 100 mg/kg bw/day was regarded as the NOEL value for Dehyquart A-CA, corresponding to 24-26 mg cetrimonium chloride/kg bw/day. A 28-day dermal repeated dose toxicity study revealed that the only tested dosage of 10 mg cetrimonium chloride/kg bw/day caused no systemic toxicity, but it did cause a number of local effects on the skin at the only tested dose of 0.5%. 10 mg/kg bw/day was thus determined to be the NOAEL (28-dermal-rabbit) for cetrimonium chloride for systemic effects. A chronic (12 months) oral study with cetrimonium bromide in the rat indicat","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_007"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rat |
oral |
28-day |
repeated dose toxicity |
{"dose":"A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects.","effect":"Within three days of ingestion 92% of the radioactivity was excreted via the faeces and 1% via urine. A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects. Slight weight changes in adrenals and spleen and an increase in alanine transaminase (ALT) levels were regarded as possible signs of systemic toxicity and occurred at the highest dosage level tested (300 mg/kg bw/day). 100 mg/kg bw/day was regarded as the NOEL value for Dehyquart A-CA, corresponding to 24-26 mg cetrimonium chloride/kg bw/day. A 28-day dermal repeated dose toxicity study revealed that the only tested dosage of 10 mg cetrimonium chloride/kg bw/day caused no systemic toxicity, but it did cause a number of local effects on the skin at the only tested dose of 0.5%. 10 mg/kg bw/day was thus determined to be the NOAEL (28-dermal-rabbit) for cetrimonium chloride for systemic effects. A chronic (12 months) oral study with cetrimonium bromide in the rat indicat","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_007"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rabbit |
dermal |
Subacute |
repeated dose toxicity |
{"citation":"Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethy","dose":"No macroscopic or microscopic alterations were found in the mid and low dose groups.","effect":"r organs. No macroscopic or microscopic alterations were found in the mid and low dose groups. All treatment-related changes were shown to be reversible following the recovery period. Conclusion The forestomach and stomach changes are considered to be a result of local irritation and not indicative of systemic toxicity. The slight weight changes of spleen and adrenals and the increase in serum ALT activity were regarded as a possible sign of minimal systemic toxicity. As such, the dose of 100 mg/kg bw/day was the no-observed-adverse-effect-level (NOAEL) in this study. Ref.: 33 Subacute dermal toxicity in rabbits Guideline: / Species/strain: New Zealand White rabbits Group size: 5 males and 5 females per dose Test substance: Ammonium, hexadecyltrimethyl-, chloride 54.5% in aqueous isopropanol Batch: not stated Dose: 0 and 0.5 % w/v: 2 ml/kg (10 mg cetrimonium chloride/kg bw/day) in distilled water for 6.5-7 hours/day, 5 days/week by dermal application Exposure: 4 weeks GLP: / Five rabbits/sex/group were treated cutaneously with the test substance for 5","page":26,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_001"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg |
rat |
oral |
28-day |
irritation |
{"dose":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and s...","effect":"SCCP/0917/05 Opinion on Alkyl (C16, C18, C22) trimethylammonium chloride for other uses than as a preservative ____________________________________________________________________________________________ 39 Repeated-dose toxicity In the 28-day oral gavage study in rats using cetrimonium chloride, local effects in the gastrointestinal tract and slight effects on organ weights without histopathological correlates were observed at a dose of 300 mg/kg b.w./day. A dose of 100 mg/kg b.w./day has been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_005"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg/day |
rat |
oral |
1-year |
reproductive toxicity |
{"dose":"In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity.","effect":"as been considered as the NOEL. In the 1-year chronic study in rats receiving cetrimonium bromide in the drinking water, the highest dose of 45 mg/kg b.w./day was a NOAEL for systemic toxicity. However, this dose produced local effects in the gastrointestinal tract secondary to the irritant nature of the substance. The NOEL in this study was 10 mg/kg b.w./day. A dose of 10 mg/kg/day was also tested in a 28-day repeated dermal toxicity study in rabbits and produced no systemic toxicity. For the MOS calculation, the NOAEL for systemic effects of 100 mg/kg/day from the 28-day study or 45 mg/kg/day from the 1-year study may be used, since the effects on the gastrointestinal tract observed in the studies are considered to be related to the oral exposure route and irrelevant for the risk assessment of topical application. Reproductive toxicity It was not possible to evaluate the studies as only summaries were provided. Skin irritation The results of available skin irritation studies in rabbits are shown in the table. Substance Expos","page":39,"pdf":"sccp_o_037.pdf","row_type":"noael_study","study_id":"sccp_o_037_noael_008"} |
| SCCS Opinion |
NOAEL |
=100 |
mg/kg bw/day |
rat |
oral |
28-day |
repeated dose toxicity |
{"dose":"A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects.","effect":"Within three days of ingestion 92% of the radioactivity was excreted via the faeces and 1% via urine. A 28-day oral repeated dose toxicity study revealed cetrimonium chloride to cause significant forestomach and stomach changes caused by its irritative effects. Slight weight changes in adrenals and spleen and an increase in alanine transaminase (ALT) levels were regarded as possible signs of systemic toxicity and occurred at the highest dosage level tested (300 mg/kg bw/day). 100 mg/kg bw/day was regarded as the NOEL value for Dehyquart A-CA, corresponding to 24-26 mg cetrimonium chloride/kg bw/day. A 28-day dermal repeated dose toxicity study revealed that the only tested dosage of 10 mg cetrimonium chloride/kg bw/day caused no systemic toxicity, but it did cause a number of local effects on the skin at the only tested dose of 0.5%. 10 mg/kg bw/day was thus determined to be the NOAEL (28-dermal-rabbit) for cetrimonium chloride for systemic effects. A chronic (12 months) oral study with cetrimonium bromide in the rat indicat","page":55,"pdf":"sccp_o_096.pdf","row_type":"noael_study","study_id":"sccp_o_096_noael_007"} |