Disodium 3-hydroxy-4-[(E)-(4- methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate
⚠ EU RestrictedIdentification
CAS Number 5858-81-1
EINECS / EC 227-497-9
CosIng Ref 93730
Chemical Name disodium;2-[(3-carboxy-2-oxidonaphthalen-1-yl)diazenyl]-5-methylbenzenesulfonate
IUPAC Name —
Formula C18H12N2Na2O6S
Mol. Weight 430.3 g/mol
SMILES CC1=CC(=C(C=C1)N=NC2=C(C(=CC3=CC=CC=C32)C(=O)O)[O-])S(=O)(=O)[O-].[Na+].[Na+]
InChIKey VPWFPZBFBFHIIL-UHFFFAOYSA-L
Function & Classification
Primary Function COLORANT
EU Regulatory Status
Max Leave-on 4%
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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