Acid Red 73
✓ EU AllowedIdentification
CAS Number 5413-75-2
EINECS / EC 226-502-1
CosIng Ref 41712
Chemical Name 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[[4-(phenylazo)phenyl]azo]-,disodium salt (CI 27290)
Formula C22H14N4Na2O7S2
Mol. Weight 556.5 g/mol
Function & Classification
Primary Function Colorant
Origin Synthetic
Category Colorants & Pigments
EU Regulatory Status
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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