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3-ETHYL-2-HYDROXY-4-METHYLCYCLOPENT-2-EN-1-ONE

CAS 42348-12-9
58

Safety score · 0–100

Moderate

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

About

3-ethyl-2-hydroxy-4-methylcyclopent-2-en-1-one is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

This cyclic enone is used as a fragrance and flavoring ingredient in cosmetics. It is not specifically regulated in EU cosmetic Annexes. Cyclopentenone derivatives are used in fragrance compositions for their warm, sweet, and musky notes. Standard industry guidelines for fragrance ketone use should be followed to minimize sensitization risk.

Skin benefits

  • Provides distinctive fragrance to cosmetic formulations

Known concerns

  • Potential skin sensitization at high concentrations
  • Standard fragrance material precautions 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 — always read the physical product label and consult a healthcare professional for personal concerns.