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Fragrance

TRANS-5-OCTENONE

CAS 19093-20-0
60

Safety score · 0–100

Fine

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

An unsaturated 8-carbon ketone used as a fresh-fruity fragrance note at trace levels. Limited public safety data; standard fragrance-allergen caveats apply.

Function

PERFUMING

Skin benefits

  • Fresh-fruity fragrance note
  • Used at trace ppm in perfumery

Known concerns

  • Unsaturated ketone — potential sensitizer
  • Limited public toxicology
  • RIFM/IFRA limits apply

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.