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HEXENYLCYCLOPENTANONE

CAS 68133-74-4
58

Safety score · 0–100

Moderate

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

HEXENYLCYCLOPENTANONE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

Hexenylcyclopentanone is a mixed aliphatic-cyclic ketone fragrance combining a 3-hexenyl substituent with a cyclopentanone ring. The structure is analogous to hedione (methyldihydrojasmonate) but with a more saturated profile. Alkenyl ketones in this class are generally considered mild, with the cyclic ketone moderating the reactivity of the double bond.

Skin benefits

  • Provides fruity-musky fragrance notes with jasmine-like qualities
  • Good substantivity due to combined aliphatic-cyclic structure

Known concerns

  • Alkenyl group introduces mild sensitization potential
  • Limited specific toxicological data for this compound
  • May be susceptible to air oxidation over time

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.