C.I. Acid Brown 87 Usage And Synthesis

Preparation

4-Aminobenzenesulfonic acid diazo, in alkaline conditions and 0.6 Moore 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid?and 0.4 Moore 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications

red light brown. Soluble in water is red light brown orange, slightly soluble in ethanol for orange brown. The strong sulfuric acid for cherry red, for orange brown after diluted. Adding strong hydrochloric acid solution for orange brown; Add thick sodium hydroxide solution for red orange brown. Used for wool, silk and polyamide fiber dyeing and printing.

C.I. Acid Brown 87(8005-58-1)Related Product Information

• Acid brown 97
• disodium 4-hydroxy-6-(phenylamino)-3-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate
• C.I. Acid Brown 92
• 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-methoxyphenyl)azo]-6-[(2-sulfoethyl)amino]-, disodium salt
• 6-Amino-4-hydroxy-3-[[4-(sulfomethyl)phenyl]azo]-2-naphthalenesulfonic acid disodium salt
• ACID BROWN85 (C.I. 34900)
• 2-Naphthalenesulfonic acid, 4-hydroxy-6-(methylamino)-3-[[4-(sulfomethyl)phenyl]azo]-, disodium salt
• Cuprate(2-), [4-(hydroxy-κO)-3-[[2-(hydroxy-κO)-5-sulfophenyl]azo-κN1]-6-(phenylamino)-2-naphthalenesulfonato(4-)]-, disodium
• 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[(2-methyl-4-nitrophenyl)azo]-, disodium salt