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

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Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Basic information
Product Name:Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt
Synonyms: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
CAS:6374-09-0
MF:C19H12N4Na2O8S
MW:502.36512
EINECS:613-362-5
Product Categories:
Mol File:6374-09-0.mol
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Structure
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Chemical Properties
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MSDS Information
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt Usage And Synthesis
Preparation3-(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 Applicationsdark 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 materialsSalicylic acid-->Resorcinol-->[(4-amino-2-sulphophenyl)amino]oxoacetic acid
Tag:Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt(6374-09-0) Related Product Information
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