Direct Brown 185

Direct Brown 185 structure

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

MDL Number:

MOL File:: 6375-50-4.mol

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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

Salicylic acid 4,4'-diamino[1,1'-biphenyl]-3-sulphonic acid Resorcinol

Preparation Products

6375-50-4(Direct Brown 185)Related Search:

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

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Direct Brown 185 C.I.Direct Brown 185:C.I.22855 6375-50-4