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METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE

CAS 39924-52-2
45

Safety score · 0–100

Moderate

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

About

Methyl 3-oxo-pentenyl-cyclopentaneacetate is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.

This cyclopentane derivative contains both ketone and unsaturation (pentenyl group) which together create structural alerts for sensitisation and enhanced toxicity. It carries GHS classifications for acute oral toxicity (H302), skin sensitisation (H317), and serious eye irritation (H319). The presence of an alpha-beta unsaturated ketone moiety is a known structural alert for skin sensitisation under EU cosmetics regulation considerations.

Skin benefits

  • Used as a fragrance ingredient in cosmetic products

Known concerns

  • Harmful if swallowed (H302)
  • May cause an allergic skin reaction (H317)
  • Causes serious eye irritation (H319)

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.