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C.I. Direct Brown 34

C.I. Direct Brown 34 Structure
C.I. Direct Brown 34 structure
CAS No.
1325-70-8
Chemical Name:
C.I. Direct Brown 34
Synonyms
Direct Brown 34;C.I. Direct Brown 34
CBNumber:
CB24771722
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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C.I. Direct Brown 34 Chemical Properties,Uses,Production

Preparation

2-Methyl-5-nitrobenzenesulfonie acid?condensation product with a self-condensation of Benzene-1,4-diamine. That was ?2-Methyl-5-nitrobenzenesulfonie acid?sodium hydroxide solution to the backflow and Benzene-1,4-diamine common heating, its molecular ratio is 2:1. Its product (C.I. Direct Orange 28, C.I. 40065) diazo, and 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid in alkaline conditions coupled.

Properties and Applications

brown. Soluble in water for the opacity of the yellow light brown, not soluble in ethanol and acetone. The strong sulfuric acid for black purple, for green light brown after diluted. Dyes to dilute sulphuric acid solution turn dark; Add thick sodium hydroxide solution unchanged.

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

C.I. Direct Brown 34 Preparation Products And Raw materials

Raw materials

7-Anilino-1-naphthol-3-sulfonic acid C.I. Direct Orange 28 p-Phenylenediamine

Preparation Products

1325-70-8(C.I. Direct Brown 34)Related Search:

disodium 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-m-tolyl]azo]-o-tolyl]azo]naphthalene-1,5-disulphonate C.I. Direct Brown 29 disodium 2'-[4-[[1-hydroxy-7-(phenylamino)-3-sulphonato-2-naphthyl]azo]phenyl]-6-methyl[2,6'-bibenzothiazole]-7-sulphonate C.I. Direct brown 26 Direct brown 33 (C.I. 35520)
Direct Brown 250 trisodium 5-[[4'-[[4-[(4-amino-7-sulphonato-1-naphthyl)azo]-6-sulphonato-1-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate DIRECT BROWN B Direct Brown 25

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C.I. Direct Brown 34 Direct Brown 34 1325-70-8