Moderate Cosmetic Ingredient NOAEL Data GHS Classified

Stannous Chloride

Also known as: Tin(II) chloride, Tin chloride (SnCl2), EINECS 231-868-0, NCI-C02722, Stannous chloride, anhydrous (+8 more)

INCI: STANNOUS CHLORIDE

Stannous Chloride (CAS 7772-99-8) is a cosmetic cosmetic ingredient functioning as Reducing agent, stabilizer, oral care ingredient (anti-caries in dentifrices). Reported NOAEL 6 mg/kg bw/day in rat (COSMOS_DB); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 7772-99-8 →

Auto-generated CPSR Part A draft with source citations
Function
Reducing agent, stabilizer, oral care ingredient (anti-caries in dentifrices)
Safety Rating
MODERATE

Chemistry & Identifiers

Formula
Cl2Sn
MW
189.61 g/mol
EC Number
231-868-0
PubChem CID
24479
IUPAC Name
dichlorotin
InChIKey
AXZWODMDQAVCJE-UHFFFAOYSA-L

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted; also approved as food additive (E 512) which supports its safety profile at low concentrations

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Stannous Chloride.

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

10 study endpoints found for Stannous Chloride. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 6 mg/kg bw/day oral rat Special Toxicology Study COSMOS_DB
NOAEL 16 mg/kg bw/day oral rat Multigeneration Reproductive COSMOS_DB
NOAEL 20 mg/kg bw/day oral rabbit Special Toxicology Study COSMOS_DB
NOAEL 25 mg/kg bw/day oral rat Short Term Toxicity COSMOS_DB
NOAEL 32 mg/kg bw/day oral rat Carcinogenicity COSMOS_DB
NOAEL 41.5 mg/kg bw/day oral rabbit Developmental COSMOS_DB
NOAEL 50 mg/kg bw/day oral mouse Developmental COSMOS_DB
NOAEL 60 mg/kg bw/day oral rat Short Term Toxicity COSMOS_DB
NOAEL 64 mg/kg bw/day oral rat Reproductive-developmental COSMOS_DB
NOAEL 94 mg/kg bw/day oral rat Short Term Toxicity COSMOS_DB

GHS Hazard Classification

Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.

Short-term Exposure Effects
The substance is irritating to the eyes and respiratory tract.
Routes of Exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
100 - 1,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (3)
Carcinogen Classification
No indication of carcinogenicity to humans (not listed by IARC).
Source: Toxin and Toxin Target Database (T3DB)
Carcinogen Classification
Stannous chloride | TR-231: Carcinogenesis Bioassay of Stannous Chloride (CASRN 7772-99-8) in F344/N Rats and B6C3F1/N Mice (Feed Study) (1982 ) | 06/23/81 | Equivocal Evidence | No Evidence | No Evidence | No Evidence | Under the conditions of this bioassay, stannous chloride was judged not to be carcinogenic for male or female F344/N rats or B6C3F1/N mice, although C-cell tumors of the
Source: NTP Technical Reports
ICSC Safety Card
0955
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Regulatory (2)
JECFA Evaluation
TIN DICHLORIDE | 2000 | PTWI, expressed as Sn, including stannous chloride. The 1988 PTWI was not reconsidered and was maintained at the fifty-fifth meeting (2000). The acute toxicity of tin was assessed at the fifty-fifth meeting, but data were insufficient for establishing an acute reference dose. JECFA reiterated the conclusion reached in 1988 that tin concentrations as low as 150 mg/kg in cann
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
EU Food Improvement
Food additives
Source: EU Food Improvement Agents

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Antioxidant Catalyst No specific technical function Reducing agent
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)

Expert Verdict

Expert safety assessment and concern-level summary for Stannous Chloride.

Regulatory Flags

endocrine_disruptor fda_food_additive

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Stannous Chloride by CAS number or substance name.

Studies
27
Lowest NOAEL
6 mg/kg bw/day
Highest NOAEL
576 mg/kg bw/day
COSMOS_DB ToxValDB_ECHA_IUCLID INCHEM_WHO_kemi_kemi_ah2005_07

Known Synonyms

Tin(II) chloride Tin chloride (SnCl2) EINECS 231-868-0 NCI-C02722 Stannous chloride, anhydrous UNII-R30H55TN67 SnCl2 stannous chloride (anh.) stannous chloride (anhydrous) tin dichloride (anhydrous) tin(II) chloride (anh.) tin(II) chloride (anhydrous) tin dichloride (anh.)

Chemical Function

Reducing agent No specific technical function Catalyst Antioxidant

Regulatory Lists

food_additive; Substances Added to Food (formerly EAFUS) (2/2019) Canada; pharmaceutical

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Stannous Chloride safe in cosmetics?

Stannous Chloride has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted. 10 toxicological study endpoint(s) are available in our database.

Is Stannous Chloride allowed in the EU?

Stannous Chloride EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Stannous Chloride do in cosmetics?

Stannous Chloride functions as: Reducing agent, stabilizer, oral care ingredient (anti-caries in dentifrices). It is classified as a cosmetic ingredient in our database. CAS number: 7772-99-8.

What is the NOAEL for Stannous Chloride?

The NOAEL (No Observed Adverse Effect Level) for Stannous Chloride is 6 mg/kg bw/day based on a Special Toxicology Study study via oral route in rat. A total of 10 study endpoints are available. Source: COSMOS_DB.

Is Stannous Chloride used outside cosmetics?

Stannous Chloride also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Stannous Chloride have different safety status in cosmetics vs industrial chemicals?

Stannous Chloride is classified GHS Danger (H290, H302, H332, H312, H314, H317, H318, H319) in the chemicals database but is allowed in EU cosmetics.

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