Chinese Japanese Germany Korea

C.I. Direct Brown 46

C.I. Direct Brown 46 Structure
C.I. Direct Brown 46 structure
CAS No.
8003-51-8
Chemical Name:
C.I. Direct Brown 46
Synonyms
Direct Brown 46;C.I. Direct Brown 46;C.I.Direct Brown 46:C.I.31785
CBNumber:
CB21401709
Molecular Formula:
C39H27N7O10S2.3Na
Molecular Weight:
886.79
MDL Number:
MOL File:
Mol file
Last updated:2022-12-21 16:56:50
Request For Quotation

C.I. Direct Brown 46 Properties

FDA UNII G40MGZ703V
EPA Substance Registry System C.I. Direct Brown 46 (8003-51-8)

C.I. Direct Brown 46 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, again with 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling.

Properties and Applications

dark brown olive green light. Soluble in water for palm light olive, soluble in ethanol. The strong sulfuric acid in the navy for, for the shallow olive gray after diluted. The dye solution to join strong hydrochloric acid have Gray light purple 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 3 2-3 2-3 2-3

C.I. Direct Brown 46 Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid Salicylic acid 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Benzidine 1-Aminonaphthalene-6-sulfonic acid

Preparation Products

8003-51-8(C.I. Direct Brown 46)Related Search:

Direct Brown 44:1 DIRECT BROWN 44 trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate sodium 4-[[diamino(naphthylazo)phenyl]azo]naphthalene-1-sulphonate 5-[[4'-[[8-[(2,4-Diaminophenyl)azo]-1-hydroxy-3,6-disulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt
DIRECT BROWN 39 2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt 5-[[2,4-Diamino-5-[(8-hydroxy-6-sodiosulfo-2-naphthalenyl)azo]phenyl]azo]-4-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt

1of2

C.I. Direct Brown 46 Direct Brown 46 C.I.Direct Brown 46:C.I.31785 8003-51-8