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Colorant

2,6-DIAMINOPYRIDINE

CAS 141-86-6
25

Safety score · 0–100

Caution

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

A diaminopyridine used as a hair-dye coupler. Produces specific oxidative shades but classified as toxic and a skin sensitiser — strict EU-regulated use only.

Function

HAIR DYEING

Skin benefits

  • Hair colour development

Known concerns

  • Acute toxicity by oral / dermal / inhalation
  • Skin sensitiser
  • Aquatic toxicant

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.