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Direct Brown 185

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Direct Brown 185 Basic information
Product Name:Direct Brown 185
Synonyms:Direct Brown 185;C.I.Direct Brown 185:C.I.22855
CAS:6375-50-4
MF:C25H19N4NaO8S
MW:558.5
EINECS:
Product Categories:
Mol File:6375-50-4.mol
Direct Brown 185 Structure
Direct Brown 185 Chemical Properties
Safety Information
MSDS Information
Direct Brown 185 Usage And Synthesis
Preparation2-Amino-5-(4-aminophenyl)benzenesulfonic acid double nitriding, Followed by coupling with ?2-Hydroxybenzoic acid?and Resorcinol coupling.
Properties and Applicationsred 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 materialsSalicylic acid-->4,4'-diamino[1,1'-biphenyl]-3-sulphonic acid-->Resorcinol
Tag:Direct Brown 185(6375-50-4) Related Product Information
Direct Brown 191 DIRECT BROWN 2 Direct Brown 179 Direct Brown 190 C.I. Direct Brown 18 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