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Fragrance ingredient

Amylcyclopentenone; 2-Pentylcyclopent-2-en-1-one

CAS 25564-22-1 Updated
48

Safety score · 0–100

Moderate

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

About

Jasmine note fragrance compound classified as a skin sensitizer in the ECHA inventory. Suitable only in low concentrations and rinse-off formats, with care for individuals prone to fragrance allergy.

Skin benefits

  • Contributes jasmine type fragrance to cosmetic formulations
  • Used at low concentrations typical for aroma chemicals

Known concerns

  • PubChem GHS lists H317, may cause an allergic skin reaction, at 99% notifications
  • Cyclopentenone structures are reactive Michael acceptors
  • Classified as a skin sensitizer by ECHA C&L Inventory
  • Caution for leave-on products and sensitive skin

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related fragrance ingredients

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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.