Direct Blue 120:2 Usage And Synthesis

Preparation

2-(4-Aminophenylamino)-2-oxoacetic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid?coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid?coupling, product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid?and where did 4-Hydroxynaphthalene-1-sulfonic acid?coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

Properties and Applications

blue.

Direct Blue 120:2()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 116 (C.I. 27980)
• trisodium 8-[[4-[(4-aminophenyl)azo]-6-sulphonatonaphthyl]azo]-5-[(2-hydroxy-6-sulphonatonaphthyl)azo]naphthalene-2-sulphonate
• 4-[(4-Amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt