3-[(4-(Acetylamino)phenyl)azo]-4-hydroxy-7-[[[[5-hydroxy-6-(phenylazo)-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-2-naphthalenesulfonic acid and its salts, when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 3441-14-3
EINECS / EC 222-348-4
CosIng Ref 31114
Chemical Name disodium;7-[[6-[(4-acetamidophenyl)diazenyl]-5-hydroxy-7-sulfonatonaphthalen-2-yl]carbamoylamino]-4-hydroxy-3-phenyldiazenylnaphthalene-2-sulfonate
IUPAC Name —
Formula C35H25N7Na2O10S2
Mol. Weight 813.7 g/mol
InChIKey NLMHXPDMNXMQBY-UHFFFAOYSA-L
Function & Classification
EU Regulatory Status
SCCS Opinion View SCCS opinion →
Safety Profile
No toxicology data available yet for this ingredient.
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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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