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C.I. Direct Brown 208

C.I. Direct Brown 208 Structure
C.I. Direct Brown 208 structure
CAS No.
8005-95-6
Chemical Name:
C.I. Direct Brown 208
Synonyms
Direct Brown 208;C.I. Direct Brown 208;C.I.Direct Brown 208:C.I.20080
CBNumber:
CB14770809
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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C.I. Direct Brown 208 Chemical Properties,Uses,Production

Preparation

3-Aminobenzenesulfonic acid (0.5 Moore) and 4-Aminobenzenesulfonic acid (0.5 Moore) diazo, and Benzene-1,3-diamine coupling, Naphthalen-1-amine diazo again, and formation of accidentally coupled nitrogen compounds.

Properties and Applications

brown. Moderate soluble in water for olive yellow brown, soluble in ethanol for yellow orange brown. The strong sulfuric acid for purple brown to black, with golden yellow diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution for yellow orange brown, have precipitation.

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

C.I. Direct Brown 208 Preparation Products And Raw materials

Raw materials

Sulfanilic acid Metanilic acid m-Phenylenediamine 1-Naphthylamine

Preparation Products

8005-95-6(C.I. Direct Brown 208)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 20 Direct Brown 222

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C.I. Direct Brown 208 Direct Brown 208 C.I.Direct Brown 208:C.I.20080 8005-95-6