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Fragrance Lactone

3-PROPYLIDENEPHTHALIDE

CAS 17369-59-4
55

Safety score · 0–100

Moderate

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

An unsaturated phthalide best known as a celery-like aroma chemical. It carries a reactive lactone structure and has limited dedicated cosmetic safety data, so it sits in a cautious middle tier.

Skin benefits

  • Used as fragrance and flavour component
  • Provides celery-like olfactive note at low dose
  • Low cosmetic use levels

Known concerns

  • Phthalide structure with limited dermal safety data
  • Possible photoreactivity and skin sensitisation
  • Not formally reviewed by SCCS/CIR for cosmetics
  • Reactive carbonyl chemistry

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related fragrance lactones

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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.