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Fragrance

PHENYLACETALDEHYDE DIMETHYL ACETAL

CAS 101-48-4 Updated
62

Safety score · 0–100

Fine

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

About

An acetal-protected form of phenylacetaldehyde used for hyacinth-green perfume notes. More stable than the free aldehyde but can release it on skin, raising sensitization risk.

Function

PERFUMING

Skin benefits

  • Hyacinth-green fragrance note
  • More stable than parent aldehyde
  • Trace fragrance use

Known concerns

  • Can hydrolyze to phenylacetaldehyde, a known sensitizer
  • Skin irritation risk
  • IFRA restrictions on related materials

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 — always read the physical product label and consult a healthcare professional for personal concerns.