Fragrance ester
OCTYL 2-BUTENOATE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
Octyl 2-butenoate is a fragrance ester used at very low levels for fruity aroma. The crotonate group raises mild reactivity concerns and the cosmetic data set is thin.
Skin benefits
- Used as a fragrance/flavour ester with fruity notes
- Acts as a solvent or fixative in trace amounts
Known concerns
- Crotonate (2-butenoate) esters can act as Michael acceptors and skin irritants
- Limited cosmetic-specific safety review
- Potential sensitisation in fragrance applications
- Inhalation exposure poorly characterised
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related fragrance esters
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.