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Fragrance

2-METHYL-4-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL)-2-BUTENAL

CAS 3155-71-3
55

Safety score · 0–100

Moderate

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

An ionone-related fragrance aldehyde with a violet character. Reactive conjugated aldehyde; IFRA category limits apply due to skin-sensitisation potential.

Function

PERFUMING

Skin benefits

  • Violet/floral aroma

Known concerns

  • Sensitisation potential
  • Conjugated aldehyde reactivity
  • Sparse public toxicology

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.