Direct Brown 185
![Direct Brown 185 Structure](CAS/20211123/GIF/6375-50-4.gif)
- CAS No.
- 6375-50-4
- Chemical Name:
- Direct Brown 185
- Synonyms
- Direct Brown 185;C.I.Direct Brown 185:C.I.22855
- CBNumber:
- CB49702949
- Molecular Formula:
- C25H19N4NaO8S
- Molecular Weight:
- 558.5
- MOL File:
- 6375-50-4.mol
Direct Brown 185 Chemical Properties,Uses,Production
Preparation
2-Amino-5-(4-aminophenyl)benzenesulfonic acid double nitriding, Followed by coupling with ?2-Hydroxybenzoic acid?and Resorcinol coupling.
Properties and Applications
red light brown. Soluble in water for yellow orange, slightly soluble in alcohol. The strong sulfuric acid to red light purple, diluted for brown. The dye solution to join strong hydrochloric acid for orange brown, have precipitation; With strong sodium hydroxide solution for red orange brown.
Direct Brown 185 Preparation Products And Raw materials
Raw materials
Preparation Products
6375-50-4(Direct Brown 185)Related Search:
Direct Brown 186
sodium 2,6-bis[(2,4-diaminophenyl)azo]toluene-4-sulphonate
5-[[4'-[[3-[(3-Carboxy-2-hydroxy-5-sulfophenyl)azo]-2,6-dihydroxyphenyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt
2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt
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Direct Brown 185
C.I.Direct Brown 185:C.I.22855
6375-50-4