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Fragrance ketone

TRIMETHYL-PENTYLCYCLOPENTANONE

CAS 65443-14-3
70

Safety score · 0–100

Fine

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

A synthetic cyclopentanone fragrance ingredient that adds woody, musky character to perfumes. Used at fractions of a percent and reviewed by the RIFM expert panel for general safety.

Skin benefits

  • Adds woody, musky notes to fragrance compositions
  • Used at very low percentages in fine fragrances and toiletries
  • Has undergone RIFM expert panel safety review
  • Worldwide use volume of 10 to 100 metric tons indicates routine industry handling

Known concerns

  • Ketone fragrance materials can cause skin irritation in sensitive users
  • Limited public data on phototoxicity or sensitization endpoints
  • Not subject to EU 26 allergen labeling, so individual sensitivity is hard to detect

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.