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

Other

45

Caution

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

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

A restricted oxidative hair dye precursor — allowed only at low concentrations for professional and consumer hair coloring.

Detailed Analysis

This pyridinediamine derivative is an oxidative hair dye primary intermediate. It is restricted under EU regulations with a maximum concentration of 0.68% as free base (1.0% as dihydrochloride salt). PubChem safety score is 45, reflecting moderate concerns. While no GHS classifications are specifically recorded, the structural class (aromatic diamines) carries inherent sensitization and mutagenicity concerns.

What It Does

HAIR DYEING

Known Concerns

  • EU restricted concentration
  • Aromatic diamine — potential sensitizer
  • Hair dye chemical

Safety Score

45

Caution

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.