1,3-Benzenedisulfonic acid, 4,6-diamino-5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-2,2'-dichloro[1,1'-biphenyl]-4-yl]azo]-, trisodium salt
1,3-Benzenedisulfonic acid, 4,6-diamino-5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-2,2'-dichloro[1,1'-biphenyl]-4-yl]azo]-, trisodium salt Basic information
- Product Name:
- 1,3-Benzenedisulfonic acid, 4,6-diamino-5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-2,2'-dichloro[1,1'-biphenyl]-4-yl]azo]-, trisodium salt
- Synonyms:
-
- 1,3-Benzenedisulfonic acid, 4,6-diamino-5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-2,2'-dichloro[1,1'-biphenyl]-4-yl]azo]-, trisodium salt
- C.I.Acid Brown 32:C.I. 23000
- Acid Brown 32
- CAS:
- 6375-57-1
- MF:
- C28H18Cl2N7Na3O10S3
- MW:
- 848.55373
- EINECS:
- 613-371-4
- Mol File:
- 6375-57-1.mol
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1,3-Benzenedisulfonic acid, 4,6-diamino-5-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-2,2'-dichloro[1,1'-biphenyl]-4-yl]azo]-, trisodium salt Usage And Synthesis
Preparation
4-(4-Amino-2-chlorophenyl)-3-chlorobenzenamine double nitriding, in acid conditions and 4,6-Diaminobenzene-1,3-disulfonic acid, and then in three alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling.
Properties and Applications
red light brown. Soluble in water for orange brown, slightly soluble in ethanol for orange red. For the strong sulfuric acid in purplish red, orange is palm diluted. In water solution to join strong hydrochloric acid for orange brown; Add thick sodium hydroxide solution for orange brown.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3-4 | 4 | 4 | |||||