| Identification | Back Directory | [Name]
7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt | [CAS]
6226-77-3 | [Synonyms]
C.I.27180
Acid Red 56
C.I.Acid Red 56
Cetil Fast Ponceau 6B
C.I.Acid Red 56:C.I.27180
7-Hydroxy-8-[[2-methoxy-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt | [MOL File]
6226-77-3.mol |
| Hazard Information | Back Directory | [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. |
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