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/20200331/GIF/6374-09-0.gif)
- 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
- MOL File:
- 6374-09-0.mol
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
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
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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