2,3-DIMETHYL-4-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL)-2-BUTENAL
Fragrance
Good
CAS Number: 71850-78-7
About 2,3-DIMETHYL-4-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL)-2-BUTENAL
A synthetic ionone-family aldehyde fragrance with a warm, woody-floral scent — no hazard classifications.
Detailed Analysis
2,3-Dimethyl-4-(2,6,6-trimethyl-1-cyclohexenyl)-2-butenal (CAS 71850-78-7) is a cyclohexenyl butenal used in perfumery. Despite being an aldehyde (a class often associated with sensitization), it carries no GHS hazard classifications and has no EU restrictions. The steric hindrance from multiple methyl groups likely reduces reactivity. Provides woody, amber-ionone type scent notes.
What It Does
Known Concerns
- ⚠ Aldehyde class — generally more reactive than other fragrance types
Safety Score
Good
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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