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N-PHENYL-P-PHENYLENEDIAMINE SULFATE

CAS 4698-29-7
32

Safety score · 0–100

Caution

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

A hair-dye intermediate that is a known skin sensitizer and respiratory irritant, requiring careful handling due to its allergic potential.

A p-phenylenediamine derivative regulated under EU Annex III/8 as a permitted hair-dye coupler with restricted maximum concentration. The ingredient carries GHS hazard codes for acute toxicity (H301/H302), skin sensitization (H317), eye irritation (H319), and environmental toxicity (H400/H410), making it suitable only for professional use at controlled concentrations.

Known concerns

  • Known skin sensitizer – risk of allergic contact dermatitis
  • Respiratory irritant (H335)
  • Acute oral toxicity (H301/H302)
  • Very toxic to aquatic life (H400/H410)

References

EU

EU CosIng database

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

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Same plant / compound family

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N-PHENYL-P-PHENYLENEDIAMINE
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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.