Acid Red 73 (CI 27290), when used as a substance in hair dye products
⚠ EU RestrictedIdentification
CAS Number 5413-75-2
EINECS / EC 226-502-1
CosIng Ref 29453
Chemical Name disodium;7-hydroxy-8-[(4-phenyldiazenylphenyl)diazenyl]naphthalene-1,3-disulfonate
IUPAC Name —
Formula C22H14N4Na2O7S2
Mol. Weight 556.5 g/mol
InChIKey PEAGNRWWSMMRPZ-UHFFFAOYSA-L
Function & Classification
EU Regulatory Status
SCCS Opinion View SCCS opinion →
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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