Is Hexylcyclopentanone safe in cosmetics?
Hexylcyclopentanone has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Hexylcyclopentanone
Also known as: Cyclopentanone, 2-hexyl-
INCI: 2-HEXYLCYCLOPENTANONE
Hexylcyclopentanone (CAS 13074-65-2) is a cosmetic cosmetic ingredient functioning as Fragrance / Masking agent. 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 13074-65-2 →
Auto-generated CPSR Part A draft with source citations
Function
Fragrance / Masking agent
Safety Rating
MODERATE
Chemistry & Identifiers
IUPAC Name
2-hexylcyclopentan-1-one
InChIKey
JTHVYOIHZNYRCC-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Allowed - RIFM safety-assessed; no FDA prohibition
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Hexylcyclopentanone.
Calculate MoS for your specific formulation with the MoS Calculator.
HRIPT Human Patch Test Studies
1 human repeat insult patch test aggregated from dermatological literature.
| Test Type | N | Sensitized | Dose µg/cm² | NESIL µg/cm² | Potency |
|---|---|---|---|---|---|
| HMT | - | 0 | 6750 | - | - |
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
1 - 10 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List
Consumer Product Chemical
Expert Verdict
Expert safety assessment and concern-level summary for Hexylcyclopentanone.
Regulatory Flags
potential-allergen
fragrance-component
ifra_fragrance
Known Synonyms
Cyclopentanone, 2-hexyl-
Chemical Function
Fragrance
Regulatory Lists
IFRA Transparency
consumer_product
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Hexylcyclopentanone allowed in the EU?
Hexylcyclopentanone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Hexylcyclopentanone do in cosmetics?
Hexylcyclopentanone functions as: Fragrance / Masking agent. It is classified as a cosmetic ingredient in our database. CAS number: 13074-65-2.
Is Hexylcyclopentanone used outside cosmetics?
Hexylcyclopentanone also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Hexylcyclopentanone compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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