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ISOAMYL FORMATE

CAS 110-45-2
68

Safety score · 0–100

Fine

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

A fragrance ingredient with a fruity, rum-like scent; may irritate eyes in concentrated form.

Isoamyl formate is a formic acid ester of isoamyl alcohol, occurring naturally in several fruits. It is listed in EU CosIng as a fragrance ingredient with required allergen declaration. The IFRA restricts its use due to sensitization potential at high concentrations. In the EU, it is regulated under the Cosmetics Regulation as a fragrance allergen requiring separate labeling when present above 0.001% in leave-on or 0.01% in rinse-off products.

Skin benefits

  • Provides pleasant scent profile in cosmetic formulations

Known concerns

  • Fragrance allergen — skin sensitization risk at high concentrations
  • EU labeling required above threshold concentrations

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, so always read the physical product label and consult a healthcare professional for personal concerns.