2,3-Dihydro-2,2-dimethyl-6-[(4-(phenylazo)-1-naphthelenyl)azo]-1H-pyrimidine (Solvent Black 3) and its salts, when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 4197-25-5
EINECS / EC 224-087-1
CosIng Ref 31110
Chemical Name (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene
IUPAC Name —
Formula C29H24N6
Mol. Weight 456.5 g/mol
InChIKey YCUVUDODLRLVIC-UHFFFAOYSA-N
Function & Classification
EU Regulatory Status
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Safety Profile
No toxicology data available yet for this ingredient.
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NOAEL · Dermal Absorption % · Sensitization
Formulation Guidelines
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Usage Level % · Addition Phase · Solubility
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