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Fragrance (acetal)

ACETALDEHYDE ETHYL LINALYL ACETAL

CAS 40910-49-4
60

Safety score · 0–100

Fine

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

A linalool-based acetal fragrance ingredient. Generally used within IFRA limits, but acid hydrolysis can release acetaldehyde, an irritant and possible carcinogen, so formulation conditions matter.

Skin benefits

  • Fragrance ingredient with fresh floral note
  • Used at low percentages in fine fragrance and personal care
  • Stable in many cosmetic bases when properly formulated

Known concerns

  • Acetal can hydrolyze under acid conditions to release acetaldehyde
  • Acetaldehyde is a known irritant and IARC Group 2B carcinogen
  • Fragrance materials carry sensitization risk in susceptible users
  • IFRA usage limits apply

References

EU

EU CosIng database

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

Same plant / compound family

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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.