2,3-DIMETHYL-4-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL)-2-BUTENAL

Fragrance

75

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

PERFUMING

Known Concerns

  • Aldehyde class — generally more reactive than other fragrance types

Safety Score

75

Good

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

🏛

EU CosIng Database

European Commission cosmetic ingredient registry

Check your products for 2,3-DIMETHYL-4-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL)-2-BUTENAL

Scan any cosmetic product to see if it contains this ingredient and get a full safety breakdown.

Download LuxSense

This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.