Disodium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate (Pigment Red 48; CI 15865) when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 3564-21-4
EINECS / EC 222-642-2
CosIng Ref 87672
Chemical Name disodium;2-[(3-carboxy-2-oxidonaphthalen-1-yl)diazenyl]-4-chloro-5-methylbenzenesulfonate
IUPAC Name —
Formula C18H11ClN2Na2O6S
Mol. Weight 464.8 g/mol
InChIKey NDEREBNOSVNICA-UHFFFAOYSA-L
Function & Classification
EU Regulatory Status
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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