Fragrance
2-TRANS, 6-TRANS-NONADIENYL ACETATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A green, cucumber-violet fragrance ester. Unsaturated, so it oxidizes over time — standard caveat for aldehyde/dienyl fragrance materials.
2-trans,6-trans-Nonadienyl acetate (CAS 67674-47-9) is a diene-containing acetate ester used in perfumery for green, cucumber, and violet leaf-style notes. The two conjugated/homoconjugated C=C bonds make it prone to oxidation and peroxide formation, requiring antioxidant protection in finished product. RIFM/IFRA cover the nonadiene fragrance family. No EU Annex II listing. Trace-level use in finished fragrance keeps consumer exposure low.
Skin benefits
- Green cucumber-violet olfactive profile
- Trace-level use
- Standard perfumery role
Known concerns
- Unsaturated scaffold auto-oxidises
- Peroxide formation can drive sensitization
- Limited dedicated public safety data
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related fragrances
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.