Ingredient

Acid Orange 6

✓ EU Allowed

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
SMILES C1=CC(=CC=C1N=NC2=C(C=C(C=C2)O)O)S(=O)(=O)[O-].[Na+]
InChIKey COEZWFYORILMOM-UHFFFAOYSA-M

Function & Classification

Primary Function Colorant
Origin Synthetic
Category Colorants & Pigments

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

Suppliers & Documents

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Documents

External Resources