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Direct Brown 20

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Direct Brown 20 Basic information
Product Name:Direct Brown 20
Synonyms:Direct Brown 20;C.I.Direct Brown 20:C.I.30060
CAS:
MF:
MW:0
EINECS:
Product Categories:
Mol File:Mol File
Direct Brown 20 Structure
Direct Brown 20 Chemical Properties
Safety Information
MSDS Information
Direct Brown 20 Usage And Synthesis
Preparation4-(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 Applicationsbrown. 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 materialsSalicylic acid-->6-Amino-4-hydroxy-2-naphthalenesulfonic acid-->Benzidine-->m-Phenylenediamine
Tag:Direct Brown 20 Related Product Information
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