Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt Basic information
- Product Name:
- Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
- Synonyms:
-
- Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
- C.I.Direct Brown 58:C.I.22340
- Direct Brown 58
- CAS:
- 6426-59-1
- MF:
- C31H23N5Na2O7S
- MW:
- 655.58816
- EINECS:
- 613-533-4
- Mol File:
- 6426-59-1.mol
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Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt Chemical Properties
- EPA Substance Registry System
- C.I. Direct Brown 58 (6426-59-1)
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Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in alkaline conditions and 6-(Dimethylamino)-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
brown. Soluble in water for dark brown, soluble in ethanol for dark orange brown. The strong sulfuric acid as dark blue light in purple, for after diluted purplish red, red brown precipitation. The dye solution to join 10% sulfuric acid as dark blue light red; Add thick sodium hydroxide solution for red light orange brown.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 2 | 4-5 | 3 | 2-3 | 2-3 | ||
AATCC | 4 | 5 | 3-4 | 2-3 | 2-3 |
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Benzoic acid, 5-[[4'-[[7-(dimethylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt(6426-59-1)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
- DIRECT BROWN 59
- 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