C.I.22360;Direct Red 88;Einecs 229-269-4;C.I.Direct Red 88;C.I.Direct Red 88:C.I.22360;Disodium 5-((4'-((7-(acetylamino)-1-hydroxy-3-sulphonato-2-naphthyl)azo)(1,1'-biphenyl)-4-yl)azo)salicylate;disodium 5-[[4'-[[7-(acetylamino)-1-hydroxy-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate;5-[[4'-[[7-(Acetylamino)-1-hydroxy-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt;Benzoic acid, 5-((4'-((7-(acetylamino)-1-hydroxy-3-sulpho-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt
4-(4-Aminophenyl)benzenamine double nitriding, respectively with 2-Hydroxybenzoic acid and6-Amino-4-hydroxynaphthalene-2-sulfonic acidcoupling.
Properties and Applications
dark red red to blue light. Soluble in water is cherry red. The strong sulfuric acid for dark red light purple, diluted for brown. The dye solution to join strong hydrochloric acid have brown light purple precipitation; Add thick sodium hydroxide solution for red light brown, a brick red precipitate
