Direct Brown 7
- Product Name
- Direct Brown 7
- Chemical Name
- Direct Brown 7
- Synonyms
- Direct Brown 7;C.I.Direct Brown 7:C.I.30035
- CBNumber
- CB89702967
- Formula Weight
- 0
- MOL File
- Mol file
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Direct Brown 7 Chemical Properties,Usage,Production
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, and 2,4-Diamino-5-methylbenzenesulfonic acid coupling, and then and 4-Aminobenzenesulfonic acid?diazo, and Benzene-1,3-diamine coupled to accidentally coupled nitrogen compounds.
Properties and Applications
brown. Soluble in water for orange brown, soluble in ethanol is palm yellow light. The strong sulfuric acid for sauce red to red light brown, for yellow brown after diluted. The dye solution to join strong hydrochloric acid have yellow olive brown precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| AATCC | 1 | 4 | 2 | 3 | 2 | ||
Direct Brown 7 Preparation Products And Raw materials
Raw materials
Preparation Products
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Direct Brown 7 Suppliers
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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
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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