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Fragrance

UNDECYLENAL

CAS 112-45-8
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 as an aldehydic fragrance note. Effective at low % but can irritate and sensitize skin.

Function

FRAGRANCE, PERFUMING

Skin benefits

  • Aldehyde fragrance ingredient
  • Fresh aldehydic top note
  • Used at low % in fine fragrance

Known concerns

  • Skin and eye irritant per GHS
  • Sensitization potential
  • Aldehydes oxidize and form allergens

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.