Direct Brown 69
Direct Brown 69 Basic information
- Product Name:
- Direct Brown 69
- Synonyms:
-
- Direct Brown 69
- C.I.Direct Brown 69:C.I.30365
- MW:
- 0
- Mol File:
- Mol File
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Direct Brown 69 Usage And Synthesis
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 | ||
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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