Colorant

6-Methoxy-N2-methyl-2,3-pyridinediamine hydrochloride and dihydrochloride salt

CAS 90817-34-8 / 83732-72-3

15

Safety score · 0–100

Avoid

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

A pyridinediamine hair-dye coupler placed on the EU Annex II list of substances banned in cosmetics. Treat as a no-use ingredient in EU markets.

Function

HAIR DYEING

Skin benefits

Hair shade specificity (historical)

Known concerns

EU Annex II banned actor
Sensitisation / genotoxicity flagged
Not permitted in EU cosmetics

References

EU

EU CosIng database

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

Related colorants

2,4-Dihydro-5-methyl-2-phenyl-4-(phenylazo)-3H-pyrazol-3-one

COBALT TITANIUM OXIDE

Colouring agent CI 12075 (Pigment Orange 5) and its lakes, pigments and salts

Disodium [29H,31H-phthalocyaninedisulphonato(4-)-N29,N30,N31,N32]cuprate(2-)

Phenol, 2-Chloro-6-(ethylamino)-4-nitro- (see note 17)

Phenol, 2-Chloro-6-(ethylamino)-4-nitro- and its salts

P-PHENYLENEDIAMINE

4-NITRO-M-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.