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4-DIMETHYLMETHYLENECYCLOHEXYL-BUTAN-2-ONE

CAS 13720-12-2
48

Safety score · 0–100

Moderate

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

About

4-DIMETHYLMETHYLENECYCLOHEXYL-BUTAN-2-ONE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

4-Dimethylmethylene cyclohexyl-butan-2-one carries an H317 (skin sensitizer) classification, requiring allergen declaration in the EU ingredient list above threshold concentrations. The exocyclic methylene group adds reactivity that can contribute to skin sensitization potential. It is not listed in EU Annex III restrictions, meaning it can be used but must be declared. IFRA guidelines provide concentration limits for safe use.

Known concerns

  • Skin sensitizer (H317)
  • Fragrance allergen declaration required

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.