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5-METHYL-2-HEPTEN-4-ONE

CAS 81925-81-7
58

Safety score · 0–100

Moderate

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

5-methyl-2-hepten-4-one is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

This branched-chain enone is structurally similar to other fragrance ketones with unsaturated character. The methylheptenyl skeleton contributes to both its odor profile and potential for skin sensitization. IFRA assessment recommendations apply to this substance, and EU cosmetic formulation guidelines require allergen disclosure above standard thresholds for this class of fragrance raw material.

Skin benefits

  • fragrance function

Known concerns

  • potential skin sensitizer

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.