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CINNAMYL ISOVALERATE

CAS 140-27-2
62

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A fragrance ester of cinnamic alcohol and isovaleric acid, classified as a fragrance allergen under EU Annex III and requiring mandatory declaration on cosmetic labels.

Cinnamyl isovalerate (also called cinnamyl isovalerate or 3-methylbutanoic acid cinnamyl ester) is a fragrance ingredient produced from the esterification of cinnamyl alcohol and isovaleric acid. Cinnamyl alcohol and cinnamyl derivatives are listed under EU Cosmetics Regulation Annex III as fragrance allergens requiring mandatory declaration on cosmetic product ingredient lists when present above 0.001% in leave-on and 0.01% in rinse-off products.

Known concerns

  • EU Annex III fragrance allergen requiring mandatory declaration
  • Potential contact allergen for sensitive individuals
  • COSING presence indicates active regulatory monitoring

References

EU

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.