2,4-DIMETHYL-3-CYCLOHEXENE CARBOXALDEHYDE
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
An alpha,beta-unsaturated aldehyde fragrance with citrus and herbal notes that carries inherent sensitization risk due to its reactive electrophilic double bond system.
2,4-Dimethyl-3-cyclohexene carboxaldehyde is an unsaturated cyclic aldehyde with a reactive double bond conjugated to the aldehyde group. Alpha,beta-unsaturated aldehydes are well-known contact allergens due to their ability to form covalent adducts with skin proteins. Limited specific toxicological data for this compound warrants caution.
Skin benefits
- Provides complex citrus-green fragrance notes in cosmetic products
Known concerns
- Alpha,beta-unsaturated aldehyde is a structural alert for sensitization
- Reactive electrophilic center can form hapten-protein complexes in skin
- Insufficient independent safety data for cosmetic use
References
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.