4-[(4-Nitrophenyl)azo]aniline (Disperse Orange 3) and its salts, when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 730-40-5
EINECS / EC 211-984-8
CosIng Ref 31126
Chemical Name 4-[(4-nitrophenyl)diazenyl]aniline
IUPAC Name —
Formula C12H10N4O2
Mol. Weight 242.23 g/mol
InChIKey UNBOSJFEZZJZLR-UHFFFAOYSA-N
Function & Classification
EU Regulatory Status
SCCS Opinion View SCCS opinion →
Safety Profile
No toxicology data available yet for this ingredient.
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NOAEL · Dermal Absorption % · Sensitization
Formulation Guidelines
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Usage Level % · Addition Phase · Solubility
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