Calcium 3-hydroxy-4-[(1-sulphonato-2-naphthyl)azo]-2-naphthoate (Pigment Red 63:1; CI 15880) when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 6417-83-0
EINECS / EC 229-142-3
CosIng Ref 87713
Chemical Name calcium 2-[(3-carboxy-2-oxidonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate
IUPAC Name —
Formula C21H12CaN2O6S
Mol. Weight 460.5 g/mol
SMILES C1=CC=C2C(=C1)C=CC(=C2S(=O)(=O)[O-])N=NC3=C(C(=CC4=CC=CC=C43)C(=O)O)[O-].[Ca+2]
InChIKey OVHKKOQGPOYPLY-UHFFFAOYSA-L
Function & Classification
EU Regulatory Status
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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