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Colorant

2,4-Dihydro-5-methyl-2-phenyl-4-(phenylazo)-3H-pyrazol-3-one

CAS 4314-14-1 Updated
15

Safety score · 0–100

Avoid

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

About

A phenylazo pyrazolone dye — listed on the EU Annex II banned-in-cosmetics list. Genotoxic concerns from azo cleavage products drive the ban.

Skin benefits

  • Industrial colour use only

Known concerns

  • EU Annex II banned actor
  • Azo-dye aromatic-amine release
  • Genotoxicity / sensitisation

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 — always read the physical product label and consult a healthcare professional for personal concerns.