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Direct Brown 69

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Direct Brown 69 Basic information
Product Name:Direct Brown 69
Synonyms:Direct Brown 69;C.I.Direct Brown 69:C.I.30365
CAS:
MF:
MW:0
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Mol File:Mol File
Direct Brown 69 Structure
Direct Brown 69 Chemical Properties
Safety Information
MSDS Information
Direct Brown 69 Usage And Synthesis
Preparation2-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 Applicationsred 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
Tag:Direct Brown 69 Related Product Information
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