3-ETHYLCYCLOPENTANE-1,2-DIONE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
3-ETHYLCYCLOPENTANE-1,2-DIONE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
3-Ethylcyclopentane-1,2-dione is a five-membered cyclic diketone (a cyclopentane with two adjacent keto groups and an ethyl substituent). It occurs naturally in butter and caramel and is used as a flavoring agent and fragrance ingredient. The 1,2-diketone structure allows for easy reduction and metabolic clearance. No specific EU restrictions apply to this compound, and the presence of two keto groups increases water solubility, reducing bioaccumulation potential. It is evaluated by FEMA/GRAS and IFRA as safe in flavor and fragrance applications.
Skin benefits
- Provides caramel-buttery fragrance note
- Natural occurrence in food
Known concerns
- Limited cosmetic-specific safety data
- May contribute to overall fragrance allergen burden
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.