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Ingredient

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Identification

CAS Number 547-57-9

EINECS / EC 208-924-8

CosIng Ref 31619

Chemical Name sodium 4-[(2,4-dihydroxyphenyl)diazenyl]benzenesulfonate

IUPAC Name —

Formula C12H9N2NaO5S

Mol. Weight 316.27 g/mol

InChIKey COEZWFYORILMOM-UHFFFAOYSA-M

Function & Classification

Primary Function Colorant

Origin Synthetic

EU Regulatory Status

🇪🇺

✓ Allowed — EU Reg. 1223/2009 II/1330 (Acid Orange 6; CI 14270: when used as substance in hair dye products)

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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External Resources