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Direct Brown 69

Direct Brown 69 Structure
Direct Brown 69 structure
CAS No.
Chemical Name:
Direct Brown 69
Synonyms
Direct Brown 69;C.I.Direct Brown 69:C.I.30365
CBNumber:
CB59702966
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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Direct Brown 69 Chemical Properties,Uses,Production

Preparation

2-Amino-5-(4-aminophenyl)benzenesulfonic acid double nitriding, first and 4-Aminobenzenesulfonic acid diazo, and Benzene-1,3-diamine coupled to a product matches, then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

Properties and Applications

red light brown. Soluble in water for red orange brown. The strong sulfuric acid in grey or black for purple, for brown after diluted. The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution for orange brown.

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

Direct Brown 69 Preparation Products And Raw materials

Raw materials

Sulfanilic acid 6-Amino-4-hydroxy-2-naphthalenesulfonic acid 4,4'-diamino[1,1'-biphenyl]-3-sulphonic acid m-Phenylenediamine

Preparation Products

(Direct Brown 69)Related Search:

Direct Brown 7 C.I. Direct brown 75 DIRECT BROWN 74 6-Amino-3-[[4'-[[2,6-diamino-3-methyl-5-[(4-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2-naphthalenesulfonic acid disodium salt Direct Brown 73
C.I. Direct Brown 67 Direct Brown 78 Direct Brown 70 4,4'-[(2-Methyl-5-sodiosulfo-1,3-phenylene)bis[azo(4,6-diamino-3,1-phenylene)azo]]bis[naphthalene-1-sulfonic acid sodium] salt

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Direct Brown 69 C.I.Direct Brown 69:C.I.30365