C22H14N4Na2O7S2
556.5 g/mol
Dye & PigmentWarning
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, disodium salt
CAS5413-75-2EC226-502-1
Category
Dye & Pigment
Compound Class
Organic Acid
Primary Use
Acid dye for textiles and histology
This compound is an acid dye used for coloring textiles and in histology for staining biological tissues. It is characterized by its azo structure and sulfonate groups, which confer water solubility and affinity for fibers and proteins.
Textile dyeingHistological staining
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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CAS 5413-75-2
Related Compounds
StrongStructure SimilarSimilarity 0.98
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Safety Reference
Warning
H319Causes serious eye irritation
H351Suspected of causing cancer
Identifiers
IUPAC Name
disodium;7-hydroxy-8-[(4-phenyldiazenylphenyl)diazenyl]naphthalene-1,3-disulfonate
InChIKey
PEAGNRWWSMMRPZ-UHFFFAOYSA-L
SMILES
C1=CC=C(C=C1)N=NC2=CC=C(C=C2)N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]
Synonyms (18)
- ACID RED 73
- Brilliant Crocein MOO
- Brilliant Croceine MOO
- Brilliant Scarlet R (VAN)
- Brilliant crocein
- Brilliantcroceine
- C.I. Acid Red 73
- Crocein Scarlet 3B
- Crocein Scarlet MOO
- SOLVENT RED 69
- Woodstain Scarlet