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Fragrance / Chemical intermediate

O-ALLYLOXYANISOLE

CAS 4125-43-3
45

Safety score · 0–100

Moderate

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

An aromatic ether combining anisole and allyl groups, used at trace levels as a fragrance ingredient and synthesis building block. Carries structural alerts for sensitization and genotoxicity at higher exposure.

Skin benefits

  • Used as a fragrance ingredient with sweet, anise-like aroma
  • Functions as a chemical intermediate in synthesis
  • Volatile and used at low concentrations in finished products

Known concerns

  • Allyloxy aromatic ethers can be skin sensitizers
  • Possible mild toxicity by oral and dermal routes
  • Methoxyphenyl/allyl ether substructures are structural alerts for genotoxicity
  • Subject to IFRA use limits and limited cosmetic safety review

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.