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Colorant

4-NITRO-M-PHENYLENEDIAMINE

CAS 5131-58-8 Updated
18

Safety score · 0–100

Avoid

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

About

A nitro-phenylenediamine hair dye precursor. Strong skin and respiratory sensitizer with documented allergy risk; EU restricts concentration. Avoid for sensitive scalps.

Function

HAIR DYEING

Skin benefits

  • Used as an oxidative hair dye precursor

Known concerns

  • GHS H334 may cause allergy or asthma if inhaled
  • H315 skin irritation, H319 eye irritation, H302 harmful if swallowed
  • Phenylenediamine class is a strong skin sensitizer
  • EU regulates use under Annex III with strict concentration limits

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.