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Direct Brown 20

Direct Brown 20 Structure
CAS No.
Chemical Name:
Direct Brown 20
Synonyms
Direct Brown 20;C.I.Direct Brown 20:C.I.30060
CBNumber:
CB19702953
Molecular Formula:
Molecular Weight:
0
MOL File:
Mol file
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Direct Brown 20 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? ?diazo, and Benzene-1,3-diamine coupled to a product matches.

Properties and Applications

brown. Soluble in water for red light brown. The strong sulfuric acid for red light blue, for yellow brown after diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; With strong sodium hydroxide solution for yellow brown, then a red light brown precipitation.

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

Direct Brown 20 Preparation Products And Raw materials

Raw materials

Salicylic acid 6-Amino-4-hydroxy-2-naphthalenesulfonic acid Benzidine m-Phenylenediamine

Preparation Products

(Direct Brown 20)Related Search:

Direct Brown 223 Direct Brown 206 CI34035 Direct Brown 227 5-[[4'-[[8-[[2,4-Diamino-5-[(4-sodiosulfophenyl)azo]phenyl]azo]-1-hydroxy-3,6-bis(sodiosulfo)-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt
Benzoic acid, 5-[[4'-[[2,4-dihydroxy-3-[(4-sulfo-1-naphthalenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt Direct Brown 221 Direct Brown 222 C.I. Direct Brown 208
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Direct Brown 20 C.I.Direct Brown 20:C.I.30060