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Hair Dye

2-Amino-5-nitrophenol

CAS 121-88-0
15

Safety score · 0–100

Avoid

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

A nitroaromatic hair-dye intermediate giving red-brown shades. EU restricts it strictly to oxidative hair dye at low % because of sensitisation and genotoxicity flags.

Skin benefits

  • Provides reddish-brown shade in oxidative hair dye

Known concerns

  • EU Annex III restricted hair dye substance
  • Skin sensitiser
  • Genotoxicity flags in older studies
  • Not for cosmetics other than hair dye

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.