Fragrance
ISONONYL PROPIONATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A branched-chain propionate ester with fruity-floral character. Straightforward ester chemistry used at trace perfumery levels.
Isononyl propionate (CAS 65155-45-5) is a branched C9-alcohol propionate ester used in perfumery for fruity-floral accords. Propionate ester class has broad safety precedent in both fragrance and flavor applications. RIFM/IFRA evaluations govern use. Not on EU Annex II.
Function
Skin benefits
- Fruity-floral fragrance note
Known concerns
- Minor irritation neat
- Specialty isomer — thinner public dossier
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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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.