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Non-cosmetic chemical

3-(1-Naphthyl)-4-hydroxycoumarin

CAS 39923-41-6
8

Safety score · 0–100

Avoid

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

A 4-hydroxycoumarin derivative belonging to the anticoagulant rodenticide chemical family. Not a recognized cosmetic ingredient and carries the bleeding hazard profile of warfarin-class molecules.

Skin benefits

  • Provides structural backbone in research-grade chemistry
  • Studied as a coumarin-class analytical reference compound

Known concerns

  • Structural analog of coumatetralyl and warfarin, an anticoagulant rodenticide class
  • 4-hydroxycoumarin scaffold inhibits vitamin K-dependent clotting factors
  • No recognized cosmetic function or INCI safety dossier
  • Risk of internal hemorrhage on systemic exposure based on class

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.