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Fragrance

TRANS-2-DECENAL

CAS 3913-81-3
50

Safety score · 0–100

Moderate

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

A long-chain aldehyde used in fragrance for a fresh citrus/cilantro smell. It's a known skin and eye irritant, so it's only acceptable at low fragrance levels — never as a leave-on bulk.

Function

PERFUMING

Skin benefits

  • Aldehyde used as a fragrance ingredient
  • Distinctive citrus/coriander odor
  • Fragrance use at trace levels

Known concerns

  • GHS H315 skin irritation
  • H319 serious eye irritation
  • Aldehydes carry sensitization potential, restrict to low fragrance use

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.