4-[(4-Amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt Usage And Synthesis

Preparation

2′-Methoxy-4′-amino-5′-chlorooxanilic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

Properties and Applications

blue. Soluble in water for hidden cyan, soluble in ethanol to blue. The strong sulfuric acid in the dark for, for the red light purple diluted. The dye solution to join strong hydrochloric acid for red light purple, have precipitation; With strong sodium hydroxide solution for purple, have precipitation.

4-[(4-Amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt(6369-27-3)Related Product Information

• 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[4-[[6(or 7)-sulfo-4-[(3-sulfophenyl)azo]-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt
• OXAMINE BLUE B
• 4-[[4-[(4-Aminophenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-2'-hydroxy[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt
• Direct Blue 111
• DIRECT BLUE 120
• 4-[(4-Amino-2-methyl-5-methoxyphenyl)azo]-1'-hydroxy-[1,2'-azobisnaphthalene]-4',6-disulfonic acid disodium salt
• Direct Blue 120:2
• Direct blue 116 (C.I. 27980)
• trisodium 8-[[4-[(4-aminophenyl)azo]-6-sulphonatonaphthyl]azo]-5-[(2-hydroxy-6-sulphonatonaphthyl)azo]naphthalene-2-sulphonate