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Fragrance

ETHYL 3-HYDROXYBUTYRATE

CAS 5405-41-4
72

Safety score · 0–100

Fine

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

Ethyl ester of beta-hydroxybutyric acid. Mild fruity fragrance and solvent; the hydroxybutyrate scaffold is a normal human metabolite, supporting low intrinsic toxicity.

Function

PERFUMING

Skin benefits

  • Mild fruity-floral fragrance ester
  • Solvent/co-solvent role

Known concerns

  • Possible mild skin sensitiser
  • Limited cosmetic-specific data

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.