Ingredient

Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate and its insoluble barium, strontium and zirconium lakes, salts and pigments

⚠ EU Restricted

Identification

CAS Number 2783-94-0
EINECS / EC 220-491-7
CosIng Ref 30421
Chemical Name disodium;6-hydroxy-5-[(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
IUPAC Name
Formula C16H10N2Na2O7S2
Mol. Weight 452.4 g/mol
SMILES C1=CC(=CC=C1N=NC2=C(C=CC3=C2C=CC(=C3)S(=O)(=O)[O-])O)S(=O)(=O)[O-].[Na+].[Na+]
InChIKey OIQPTROHQCGFEF-UHFFFAOYSA-L

Function & Classification

EU Regulatory Status

🇪🇺
⚠ Restricted — EU Reg. 1223/2009 IV
Conditions of Use Purity criteria as set out in Commission Directive 95/45/EC (E 110)

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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