Ingredient

Disodium 5-acetylamino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonate

⚠ EU Restricted

Identification

CAS Number 3734-67-6
EINECS / EC 223-098-9
CosIng Ref 30428
Chemical Name disodium;5-acetamido-4-hydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate
IUPAC Name
Formula C18H13N3Na2O8S2
Mol. Weight 509.4 g/mol
SMILES CC(=O)NC1=C2C(=CC(=C1)S(=O)(=O)[O-])C=C(C(=C2O)N=NC3=CC=CC=C3)S(=O)(=O)[O-].[Na+].[Na+]
InChIKey WXLFIFHRGFOVCD-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 128)

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