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Fragrance aldehyde

3,5,6-TRIMETHYL-3-CYCLOHEXENE-1-CARBALDEHYDE

CAS 67634-07-5
52

Safety score · 0–100

Moderate

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

This trimethyl cyclohexene aldehyde is a fragrance ingredient. It can cause allergic skin reactions and eye irritation, and is harmful to aquatic life, so use levels are tightly limited by IFRA.

Skin benefits

  • Provides green, floral aldehyde fragrance notes
  • Useful in perfume compositions and scented cosmetics

Known concerns

  • GHS H317 may cause an allergic skin reaction
  • H319 causes serious eye irritation
  • H412 harmful to aquatic life with long lasting effects
  • Aldehyde fragrance materials can sensitize over time

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related fragrance aldehydes

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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.