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Fragrance

4-ETHYLOCTA-2,4-DIENOIC ACID

CAS 72928-47-3
60

Safety score · 0–100

Fine

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

An unsaturated medium-chain dienoic acid used at trace levels as a fragrance/flavor character. PubChem reports no GHS hazards.

Function

PERFUMING

Skin benefits

  • Niche fragrance/flavor acid
  • No PubChem GHS hazards reported

Known concerns

  • Free fatty/dienoic acid — possible mild skin irritation
  • Limited cosmetic-specific safety literature
  • Likely IFRA-controlled use levels

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.