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Colorant

2-HEXYLOXYCARBONYL-P-PHENYLENEDIAMINE HCL

CAS 2328127-45-1 (free base) Updated
30

Safety score · 0–100

Caution

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

About

A p-phenylenediamine derivative used as an oxidative hair dye precursor. Strong sensitizer — EU restricts it with a mandatory allergy warning; not for skin or eyebrow use.

Function

HAIR DYEING

Skin benefits

  • Hair coloring intermediate

Known concerns

  • Strong sensitizer
  • EU Annex III restricted
  • Allergic contact dermatitis
  • Forbidden for eyebrows/eyelashes

References

EU

EU CosIng database

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

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Check your shelf

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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.