Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt

Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt structure

CAS No.: 6374-09-0

Chemical Name:: Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt

Synonyms: Direct Red 185;C.I.Direct Red 185:C.I.21610;Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt

CBNumber:: CB64753773

Molecular Formula:: C19H12N4Na2O8S

Molecular Weight:: 502.36512

MDL Number:

MOL File:: 6374-09-0.mol

Request For Quotation

Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Chemical Properties,Uses,Production

Preparation

3-(4-Amino-2-sulfophenylamino)-2,3-dioxopropanoic acid diazo, coupled with 2-Hydroxybenzoic acid, grass acid base hydrolysis, again diazo, Coupled with resorcinol.

Properties and Applications

dark red to red light brown. Soluble in water for orange brown, slightly soluble in alcohol. The strong sulfuric acid for purple, diluted shallow orange for brown. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution for dark purple.

Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Preparation Products And Raw materials

Raw materials

Salicylic acid Resorcinol [(4-amino-2-sulphophenyl)amino]oxoacetic acid

Preparation Products

6374-09-0(Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt)Related Search:

Direct Red 180 1-Chloro-8-hydroxy-7-[4-(6-methylbenzothiazol-2-yl)phenylazo]naphthalene-3,6-bis(sulfonic acid sodium) salt C.I. Direct Red 187 2-Naphthalenesulfonic acid, 3-[[2,5-dimethyl-4-[(4-sulfophenyl)azo]phenyl]azo]-4-hydroxy-7-[[[(5-hydroxy-7-sulfo-2-naphthalenyl)amino]carbonyl]amino]-, trisodium salt BENZOPURPURIN 4B

C.I. Direct Red 191 Direct red 194 (C.I. 35785) Direct Red 181 2-Hydroxy-5-[[5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthalenyl]azo]benzoic acid sodium salt

1of2

Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt C.I.Direct Red 185:C.I.21610 Direct Red 185 6374-09-0