DIRECT BROWN 59
DIRECT BROWN 59 Basic information
- Product Name:
- DIRECT BROWN 59
- Synonyms:
-
- DIRECT BROWN 59
- C.I.Direct Brown 59:C.I.22345
- MW:
- 0
- Mol File:
- Mol File
More
Less
DIRECT BROWN 59 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in alkaline conditions and 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid coupling.
Properties and Applications
black light brown. Soluble in water for olive brown, soluble in ethanol for red brown, slightly soluble in acetone. The strong sulfuric acid for purple, diluted Shallow red brown for; In nitric acid in by the red light brown into olive brown. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution have red light brown precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4 | 3 | 3 | 2-3 | ||
| AATCC | 5 | 4 | 3-4 | 3-4 | 2 | ||
More
Less
DIRECT BROWN 59()Related Product Information
- Direct Brown 57
- 6-Amino-4-hydroxy-3-[[4'-[(2,4-diaminophenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2-sulfonic acid sodium salt
- disodium 5-[[4'-[[4-[(4-hydroxyphenyl)azo]-6(or 7)-sulphonato-1-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate
- DIRECT BROWN 6
- Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
- Direct Brown 61
- Benzoic acid, 5-[[4'-[(2-amino-3-hydroxy-6-sulfo-1-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
- [2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]-6-methyl-, monosodium salt
- C.I. Direct brown 62