Ingredient

BASIC ORANGE 31

⚠ EU Restricted

Identification

CAS Number 97404-02-9
EINECS / EC 306-764-4
CosIng Ref 41527
Chemical Name 4-[(1,3-dimethylimidazol-1-ium-2-yl)diazenyl]aniline chloride
IUPAC Name
Formula C11H14ClN5
Mol. Weight 251.71 g/mol
InChIKey KEVCVWPVGPWWOI-UHFFFAOYSA-N

Function & Classification

Primary Function HAIR DYEING

EU Regulatory Status

🇪🇺
⚠ Restricted — EU Reg. 1223/2009 III/276

Safety Profile

No toxicology data available yet for this ingredient.

Check SCCS opinions or CIR reports for published safety assessments.

NOAEL · Dermal Absorption % · Sensitization

Formulation Guidelines

Usage level, pH range, solubility and addition phase not yet available.

Usage Level % · Addition Phase · Solubility

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Documents

External Resources