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Fragrance

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

CAS 71850-78-7
60

Safety score · 0–100

Fine

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

An ionone-related unsaturated aldehyde used as a violet/woody fragrance ingredient. No PubChem GHS pictograms but class is known for occasional sensitization.

Function

PERFUMING

Skin benefits

  • Ionone-related alpha,beta-unsaturated aldehyde fragrance
  • Provides violet/woody fragrance character
  • Used at trace fragrance ppm

Known concerns

  • Alpha,beta-unsaturated aldehydes can be skin sensitizers
  • Limited public toxicology data
  • Generic fragrance allergen caveats apply

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, so always read the physical product label and consult a healthcare professional for personal concerns.