Basic information Safety Supplier Related

7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt

Basic information Safety Supplier Related

7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt Basic information

Product Name:
7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt
Synonyms:
  • 7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt
  • C.I.27180
  • C.I.Acid Red 56
  • Cetil Fast Ponceau 6B
  • Acid Red 56
  • C.I.Acid Red 56:C.I.27180
CAS:
6226-77-3
MW:
0
Mol File:
6226-77-3.mol
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7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt Usage And Synthesis

Preparation

2-Aminobenzenesulfonic acid diazo, and O-Anisidine coupling, then the water with sulfonic acid base, again diazotization and with 7-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

blue-ray red. Soluble in water for product red, soluble in ethanol for red orange. The strong sulfuric acid for green light blue, diluted into pink. Adding strong hydrochloric acid in aqueous solution for the red light purple; Add thick sodium hydroxide solution for purple.

7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium saltSupplier