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5-METHYL-1-(2,2,3-TRIMETHYLCYCLOPENTENYL)-6-OXABICYCLOOCTANE

CAS 139539-66-5
78

Safety score · 0–100

Fine

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

A polycyclic ether fragrance ingredient delivering exotic, woody-sandalwood notes, with no significant hazard statements on record for cosmetic use.

This oxabicyclo derivative is a newer specialty fragrance chemical with a complex polycyclic structure providing warm, woody, and slightly metallic olfactive facets. No GHS hazard statements are recorded, and the substance does not appear on EU Annex II or III restriction lists. While a recent ingredient in the fragrance industry, it has undergone IFRA compliance review and is considered safe for fragrance use at standard concentrations.

Skin benefits

  • Provides exotic woody-sandalwood fragrance character

Known concerns

  • Limited historical safety data due to recent introduction
  • Should be used within IFRA-recommended limits

References

EU

EU CosIng database

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

Related others

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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.