4-Amino-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid disodium salt
- CAS NO.:6470-45-7
- Molecular Weight: 0
What is 4-Amino-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid disodium salt?
Preparation
3,3′-Dimethylbenzidine double nitriding, first with 4-Aminonaphthalene-1-sulfonic acid matches, again with 4-Hydroxynaphthalene-1-sulfonic acid coupling. In some brands are available in 6-Aminonaphthalene-1-sulfonic acid instead of 4-Hydroxynaphthalene-1-sulfonic acid.
Properties and Applications
dark red light purple. Soluble in water for Red sauce, soluble in ethanol for product Red. The strong sulfuric acid for blue, blue for red after diluted. The dye solution to join strong hydrochloric acid for hidden cyan, have precipitation; Add thick sodium hydroxide solution for red wine.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 1 | 3 | 2 | 1-2 | 1-2 | ||
Safety information for 4-Amino-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid disodium salt
New Products
Paroxetine Impurity G/Paroxetine Related Compound E 1-Aminocyclopentane carbonitrile (RS)-beta-Amino-beta-(4-bromophenyl)propionic acid N,N CARBONYL DIIMIDAZOLE 2-Amino-5-bromo-4-(trifluoromethyl)pyridine(RM for Indian lab) Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate (R)-1-Benzyl-3-pyrrolidinecarbonitrile Betahistine EP Impurity C Cyclobenzaprine N-oxide/Citalopram Related Compound E Chlorthalidone Impurity I Carbamazepine EP Impurity G Sumatriptan Succinate USP Related Compound C 2,2'-(5-methyl-1,3-phenylene)-di(2-Methylpropionitrile) 4-Fluorothiophenol 1-methyl amino-2,4-dinitro benzene 5-Methyl-1,3-benzenediacetonitrile (R)-BoroLeu-(+)-Pinanediol-CF3COOH 4-(5-amino-1-methyl-1h-benzoimidazol-2-yl)-butyric acid isopropyl ester. 4-Bromo Benzylcyanide 3-Hydroxypropionitrile valeronitrile 3,4 Dimethoxy Benzylcyanide 3-chlorobenzyl cyanide 2-Chloro BenzylcyanideRelated products of tetrahydrofuran


![4-Hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt](https://img.chemicalbook.in/CAS/GIF/6507-83-1.gif)
![trisodium 3-[[4-[[6-(anilino)-1-hydroxy-3-sulphonato-2-naphthyl]azo]-5-methoxy-o-tolyl]azo]naphthalene-1,5-disulphonate](https://img.chemicalbook.in/CAS/GIF/6227-20-9.gif)

![3-[[2,5-Dimethyl-4-[(1-hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]phenyl]azo]naphthalene-1,5-disulfonic acid disodium salt](https://img.chemicalbook.in/CAS/GIF/6227-11-8.gif)
![2-Naphthalenesulfonic acid, 4-hydroxy-3-[2-[2-methoxy-5-methyl-4-[2-(3-sulfophenyl)diazenyl]phenyl]diazenyl]-7-(phenylamino)-, sodium salt (1:2)](https://img.chemicalbook.in/CAS/20211123/GIF/6227-13-0.gif)

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