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Hair dye intermediate

4,6-BIS-(2-HYDROXYETHOXY)-M-PHENYLENEDIAMINE HCL

CAS 94082-85-6
35

Safety score · 0–100

Caution

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

Phenylenediamine derivative used as a permanent hair dye precursor in oxidative color formulations. EU regulation places strict concentration limits and warning label requirements because of sensitization potential.

Skin benefits

  • Oxidative hair dye precursor
  • Contributes to a range of permanent hair color shades

Known concerns

  • Aromatic diamine class includes recognised skin sensitizers
  • EU Annex III restricts concentration and labeling for hair dyes
  • Mandatory patch test warning
  • Not permitted in eyebrow or eyelash products and restricted by age

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.