Also known as: alpha- Amyl cinnamal, 2-(Phenylmethylene)heptanal, 2-Benzylideneheptanal, Pentylcinnamaldehyde, 2-(Phenylmethylene)-heptanal (+15 more)
INCI: AMYL CINNAMAL
Amyl Cinnamal (CAS 122-40-7) is a cosmetic fragrance functioning as Fragrance. NOAEL 23 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: restricted, max Mandatory labeling in leave-on products at >0.001%; rinse-off >0.01%. Industrial safety data is also available in the chemical safety database.
EU Max Conc.Mandatory labeling in leave-on products at >0.001%; rinse-off >0.01%
US US Statuspermitted
US NotesIFRA standard restricts use level by product category; fragrance industry QRA2 framework applies
For full compliance data across multiple jurisdictions, use the
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Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Amyl Cinnamal.
Calculate MoS for your specific formulation with the
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Toxicological Studies
4 study endpoints found for Amyl Cinnamal. 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
Subchronic
COSMOS_DB
NOAEL
=0.04 mg/kg bw/day
-
-
Toxicology study
INCHEM_WHO_harmproj_harmproj_harmproj10
NOAEL
=23 mg/kg bw/day
oral
Rat
chronic
ToxValDB_ECHA_IUCLID
NOAEL
=36 mg/kg bw/day
oral
Rat
chronic
ToxValDB_ECHA_IUCLID
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Amyl Cinnamal across SCCS product categories, with measured dermal absorption where available.
Sensitization Profile
Contact sensitization data for Amyl Cinnamal based on clinical patch test studies and IFRA standards.
Sensitization Rate
low
Allergen Class
fragrance
EU Allergen Listed
yes
Patch Test Positive Rate
0.3%
Cross-reactivity Group
fragrance-mix-II
Reaction Type
contact-dermatitis
IFRA Restricted— max 0.1% in finished products
Source: ESSCA/IVDK
Dermal Penetration Profile
Skin absorption and penetration characteristics of Amyl Cinnamal, relevant to systemic exposure and MoS calculations.
Absorption %
15-25%
Penetration Level
epidermis
Penetration Depth
epidermis
Molecular Weight
188.3 Da
Log P
4.2
Systemic Absorption
yes
Topical Bioavailability
10-20%
Safety Margin Factor
high
Vehicle Dependent
Yes — absorption varies by formulation
Source: SCCS/1459/11, IFRA
EPA ToxValDB — Toxicity Values
10 toxicity values from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).
Endpoint
Value
Species
Route
Duration
Source
NOAEL
=30 mg/kg-day
Rat
oral
chronic
EFSA
LD50
>2000 mg/kg
Rabbit
dermal
-
ECHA IUCLID
LD50
=3100 mg/kg
Rat
oral
-
ECHA IUCLID
LD50
=3700 mg/kg
Rat
oral
-
ECHA IUCLID
LD50
=2220 mg/kg
Rat
oral
-
ECHA IUCLID
LD50
=3730 mg/kg
Rat
oral
-
ECHA IUCLID
NOAEL
=23 mg/kg-day
Rat
oral
chronic
ECHA IUCLID
NOAEL
=36 mg/kg-day
Rat
oral
chronic
ECHA IUCLID
LOEL
=30 %
Mouse
dermal
short-term
ECOTOX
LD50
=3730 mg/kg
Rat
oral
-
ChemIDplus
Sensitization AOP Dashboard
Adverse Outcome Pathway data across 5 assays (DPRA, KeratinoSens, hCLAT, LLNA, NESIL) aggregated from public sources.
DPRA Cys %
0.6%
DPRA Lys %
3.9%
KeratinoSens IC50
48.885 µM
hCLAT CV75
24.2 µg/mL
LLNA EC3
10.6%
NESIL
3724 µg/cm²
LLNA: Weak (1B)GHS: 1BHuman: positive
Source: LLNA: Gerberick et al. (2005) | Submitted by RIFM (RIFM DB #52888); DPRA: Gerberick et al. 2007 [DOI:10.1093/toxsci/kfm064]; KS: Natsch et al. 2013 [DOI:10.1002/jat.2868]; hCLAT: Ashikaga et al. 2010 [DOI:10.1177/026119291003800403]; HPPT: [103] Greif N (1967): Cutaneous safety of fragrance material as measured by the maximization test.
HRIPT Human Patch Test Studies
4 human repeat insult patch tests aggregated from dermatological literature.
Test Type
N
Sensitized
Dose µg/cm²
NESIL µg/cm²
Potency
HRIPT
109
0
23620
23620
non-sensitizer
HMT
-
0
3724.14
-
-
HMT
-
0
3888
-
-
HRIPT
-
0
23622.05
-
-
Endocrine Disruptor Evidence (Expanded)
Cross-referenced EDC classifications, mechanism data, and dose-response evidence from EDLists, SIN List, and cosmetic-specific detail sources.
Cosmetic-Specific Mechanism
Category:fragrance
Receptor targets:ERα (limited)
LOEC:100 µM
EU status:allowed (allergen labeling)
weak modulator
Expanded Jurisdictional Detail
Additional regulatory detail beyond the 7-jurisdiction summary: Saudi SFDA, Korea MFDS, ASEAN ACD, Japan/Korea, Brazil/India, and cross-jurisdictional restriction entries.
EU Restricted for Children (Cosmetics)IFRA Fragrance Transparency ListFDA Substances Added to Food (EAFUS)Consumer Product ChemicalEU CosIng Cosmetics Ingredient Database
Expert Verdict
Expert safety assessment and concern-level summary for Amyl Cinnamal.
Cleaning products and household care - laundry and fabric treatment - laundry stain remover; detected; EuropeEuropeCanada; pharmaceuticalCanada; pharmaceuticalIFRA Transparencyfood_additive; Substances Added to Food (formerly EAFUS) (2/2019)EuropeCleaning products and household care - air freshener; detected; Europe; Vehicle - car interior - auto air freshenerchildren; Europe; Personal carechildren; Europe; Personal care - specialized bath products - bath saltschildren; Europe; Personal carechildren; Europe; Personal care - general moisturizing - hand/body lotionchildren; Europe; Personal carechildren; Europe; Personal carechildren; detected; Europe; Personal careCleaning products and household care - dishwasher and dishes; Cleaning products and household care - general household cleaning - surface cleaner; detected; Europeconsumer_product; detected; EuropeCleaning products and household care - laundry and fabric treatment - laundry stain remover; detected; Europe
Australian Status
AICIS status:listed
Frequently Asked Questions
Is Amyl Cinnamal safe in cosmetics?
Amyl Cinnamal has a safety rating of "MODERATE" in our database. EU status: restricted. US status: permitted. 4 toxicological study endpoint(s) are available in our database.
Is Amyl Cinnamal allowed in the EU?
Amyl Cinnamal EU regulatory status: restricted. Maximum allowed concentration: Mandatory labeling in leave-on products at >0.001%; rinse-off >0.01%. This is based on EU Regulation 1223/2009 and its amendments.
What does Amyl Cinnamal do in cosmetics?
Amyl Cinnamal functions as: Fragrance. It is classified as a Fragrance in our database. CAS number: 122-40-7.
What is the NOAEL for Amyl Cinnamal?
The NOAEL (No Observed Adverse Effect Level) for Amyl Cinnamal is 6 mg/kg bw/day based on a Subchronic study via oral route in rat. A total of 4 study endpoints are available. Source: COSMOS_DB.
Compliance Tools
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