C.I. Direct brown 24

C.I. Direct brown 24 structure

CAS No.: 8003-74-5

Chemical Name:: C.I. Direct brown 24

Synonyms: Direct Brown 24;C.I. Direct brown 24;C.I.Direct Brown 24:C.I.31700;Benzoic acid, 5-((4'-((4-((2,4-diaminophenyl)azo)-6(or 7)-sulfo-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt

CBNumber:: CB62495297

Molecular Formula:: C35H26N8O6S.2Na

Molecular Weight:: 732.69

MDL Number:

MOL File:: Mol file

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C.I. Direct brown 24 Properties

EPA Substance Registry System	C.I. Direct Brown 24 (8003-74-5)

C.I. Direct brown 24 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and Benzene-1,3-diamine coupling.

Properties and Applications

dark red light brown. Soluble in water for brown, and adequate soluble in alcohol for red sauce. In the dark for the strong sulfuric acid, diluted for olive brown. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution have orange brown precipitation

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	3	4-5	2	2-3		3

C.I. Direct brown 24 Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid Salicylic acid Benzidine 1-Aminonaphthalene-6-sulfonic acid m-Phenylenediamine

Preparation Products

8003-74-5(C.I. Direct brown 24)Related Search:

Direct Brown 248 Direct Brown 249 Direct Brown 228 Indosol Brown SF-BR Direct Brown 242

Direct Brown 247 Direct Brown 235 DIRECT BROWN 232 Direct Brown 229

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Benzoic acid, 5-((4'-((4-((2,4-diaminophenyl)azo)-6(or 7)-sulfo-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, disodium salt C.I. Direct brown 24 C.I.Direct Brown 24:C.I.31700 Direct Brown 24 8003-74-5