3,5,6-TRIMETHYL-3-CYCLOHEXENYL-4-PENTEN-3-ONE
Caution
CAS Number: 67801-32-5
About 3,5,6-TRIMETHYL-3-CYCLOHEXENYL-4-PENTEN-3-ONE
3,5,6-TRIMETHYL-3-CYCLOHEXENYL-4-PENTEN-3-ONE is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.
Detailed Analysis
This trimethylcyclohexenyl ketone is a sesquiterpenoid-type fragrance compound with multiple sites of unsaturation. The H315 (skin irritation) and H317 (skin sensitization) classifications indicate it can act as a contact allergen. The alpha,beta-unsaturated ketone system (conjugated enone) is a structural alert for Michael acceptor reactivity, which correlates with sensitizing potential. The compound would require declaration as a fragrance allergen under EU rules and should be limited to low concentrations in leave-on products.
Skin Benefits
- ✓ Complex fragrance profile for fine fragrances
Known Concerns
- ⚠ H315 - skin irritant
- ⚠ H317 - skin sensitizer
- ⚠ Alpha,beta-unsaturated ketone structural alert
- ⚠ Must be declared as fragrance allergen in EU
Safety Score
Caution
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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Download LuxSenseThis information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.