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3,5-Diamino-2,6-dimethoxypyridine and its salts

CAS 56216-28-5 - 85679-78-3
45

Safety score · 0–100

Moderate

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

A hair dye intermediate precursor restricted to oxidative hair dye formulations, with potential sensitisation concerns.

3,5-Diamino-2,6-dimethoxypyridine is an aromatic amine hair dye precursor used in oxidative (permanent) hair coloration systems. Under EU Cosmetics Regulation Annex III, it is restricted to below 0.1% as a constituent of substances or mixtures for use in hair dye formulations. Like other aromatic amine dye precursors, it carries potential sensitisation concerns and requires appropriate warning labelling.

Function

COLORANT

Known concerns

  • Restricted in EU (Annex III, <0.1% in hair dyes)
  • Potential skin sensitiser
  • Requires oxidative coupling for safe use
  • Aromatic amine dye precursor concerns

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.