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Fragrance

TRANS-2-OCTENAL

CAS 2548-87-0 Updated
50

Safety score · 0–100

Moderate

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

About

A reactive aldehyde with a green, fatty smell used in fragrance compositions. GHS data flag both skin and eye irritation, so use is restricted to very low percentages.

Function

PERFUMING

Skin benefits

  • Green/fatty fragrance note
  • Used at trace levels
  • Naturally occurring in many essential oils

Known concerns

  • Skin irritation (H315)
  • Serious eye irritation (H319)
  • Reactive alpha,beta-unsaturated aldehyde

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.