Direct Brown 61
Direct Brown 61 Basic information
- Product Name:
- Direct Brown 61
- Synonyms:
-
- Direct Brown 61
- C.I.Direct Brown 61:C.I.30055
- MW:
- 0
- Mol File:
- Mol File
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Direct Brown 61 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, then with 4-Hydroxynaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a single accidentally coupled nitrogen compounds.
Properties and Applications
red light brown. Soluble in water for dark orange brown. The strong sulfuric acid for purple, dilute after brown precipitation. The dye solution to join strong hydrochloric acid have dark brown precipitation; Add thick with a small amount of sodium hydroxide solution red precipitate.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 2-3 | 3 | 1-2 | 2-3 | 3 | ||
| AATCC | 2 | 2 | 2-3 | 1 | 2 | ||
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Direct Brown 61()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 59
- 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