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Fragrance terpene ether

CIS-METHOXY-DIMETHYLOCTADIENE

CAS 2565-83-5
42

Safety score · 0–100

Moderate

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

A methoxylated terpene used as a fragrance ingredient. Like many oxidized terpenes it can form sensitizing breakdown products, and its full safety dossier in cosmetics is limited.

Skin benefits

  • Fragrance component with terpene-like character
  • Adds floral or citrus nuance to perfume accords

Known concerns

  • Limited published toxicology data
  • Terpene ethers prone to oxidation forming sensitizing hydroperoxides
  • Potential skin sensitizer based on structural analogy
  • Not on RIFM positively cleared list with full data set

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.