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4-ETHYLACETOPHENONE

CAS 937-30-4
62

Safety score · 0–100

Fine

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

About

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

4-Ethylacetophenone (para-ethylacetophenone) is a ketone with a sweet, warm, slightly floral odor profile used as a fragrance ingredient in perfumes and scented cosmetic products. It falls within the scope of EU Regulation 1223/2009 Annex III which lists fragrance allergens requiring mandatory declaration when present above 0.001% in leave-on products or 0.01% in rinse-off products. It is not otherwise restricted and has a long history of use in the fragrance industry.

Skin benefits

  • Provides warm, sweet fragrance notes
  • Widely used in perfumery

Known concerns

  • EU declared fragrance allergen requiring label declaration
  • May cause skin sensitization in predisposed individuals
  • Mild skin irritation reported at high concentrations

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.