Direct Brown 191

Direct Brown 191 structure

CAS No.: 10190-16-6

Chemical Name:: Direct Brown 191

Synonyms: Direct Brown 191;C.I.Direct Brown 191:C.I.13220

CBNumber:: CB89702952

Molecular Formula:

Molecular Weight:: 0

MDL Number:

MOL File:: Mol file

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Direct Brown 191 Chemical Properties,Uses,Production

Preparation

4-Aminobenzenesulfonic acid diazo, and Benzene-1,3-diamine coupling.

Properties and Applications

red light brown. Soluble in water for yellow orange, soluble in ethanol for yellow. The strong sulfuric acid in orange, diluted to orange still. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution discoloration.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	5	5	4	4-5		5

Direct Brown 191 Preparation Products And Raw materials

Raw materials

Sulfanilic acid m-Phenylenediamine

Preparation Products

10190-16-6(Direct Brown 191)Related Search:

DIRECT BROWN 2 Direct Brown 179 Direct Brown 190 Direct Brown 185 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 191 C.I.Direct Brown 191:C.I.13220 10190-16-6