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Fragrance

2-ETHYLIDENEDECANAL

CAS 64825-20-3 Updated
55

Safety score · 0–100

Moderate

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

About

A C12 unsaturated aldehyde fragrance ingredient. Aldehydes can react with skin proteins; treat as orange caution at perfume levels.

Function

PERFUMING

Skin benefits

  • Aldehyde fragrance note — fatty/citrus

Known concerns

  • Long-chain unsaturated aldehyde — possible sensitiser
  • Schiff-base reactivity with skin proteins
  • Limited cosmetic-specific data

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.