C.I. Direct brown 75
C.I. Direct brown 75 Basic information
- Product Name:
- C.I. Direct brown 75
- Synonyms:
-
- Benzoic acid, 5-((4'-((1-amino-8-hydroxy(1-naphthalenylazo)-3,6-disulfonaphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-2-hydroxy-, trisodium salt
- C.I. Direct brown 75
- C.I.Direct Brown 75:C.I.30325
- Direct Brown 75
- CAS:
- 1324-84-1
- MF:
- C39H27N7O10S2.3Na
- MW:
- 886.79
- Mol File:
- Mol File
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C.I. Direct brown 75 Chemical Properties
- EPA Substance Registry System
- C.I. Direct Brown 75 (1324-84-1)
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C.I. Direct brown 75 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, and 2-Hydroxybenzoic acid coupling, and then and Naphthalen-1-amine diazo, Coupled with?4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid??coupling product obtained.
Properties and Applications
dark red light brown. The strong sulfuric acid for red light blue, purple solution for red after diluted, precipitation; In the nitric acid for brown. The dye solution to join strong hydrochloric acid have dark purple precipitation; Add thick sodium hydroxide solution is palm red light.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 4-5 | 1-2 | 1-2 | 3 | ||
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C.I. Direct brown 75(1324-84-1)Related Product Information
- Direct Brown 7
- 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 69
- 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