4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt Chemical Properties

EPA Substance Registry System

C.I. Direct Blue 51 (6360-65-2)

4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt Usage And Synthesis

Preparation

2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and formation of accidentally nitrogen compounds and then in alkaline conditions and 3-Hydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications

navy blue light to dark. Soluble in water to blue. The strong sulfuric acid in blue, purple and blue after diluted precipitation.

4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt(6360-65-2)Related Product Information

• 1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-hydroxy-, disodium salt
• Azoform Brilliant Blue G
• Direct Blue 45
• C.I. Direct blue 49
• 5-Amino-3-[[4'-[[6-amino-1-hydroxy-5-[(4-nitro-2-sulfophenyl)azo]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt
• 5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt
• PYRROLE BLUE
• amanil developed black bhsw
• Direct Blue 5