3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
- CAS NO.:5850-66-8
- Molecular Weight: 0
What is 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt?
Preparation
2-Amino-4-chloro-5-nitrophenol diazotization, with 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.
Properties and Applications
deep green light blue. Soluble in water for purple, slightly soluble in alcohol. In concentrated sulfuric acid for blue to black, dilution after pink to purple. Dye aqueous solution to join concentrated hydrochloric acid for magenta; Join strong caustic for red light blue.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 5 | 5-6 | 5 | 2 | 3 | 4 | 4-5 |
| AATCC | 5 | 5-6 | 5 | 5 | 5 | 5 | |
Safety information for 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt
New Products
Levothyroxine Impurity-F Montelukast EP Impurity-D/Montelukast USP Related Compound C Atorvastatin FXA Impurity/Atorvastatin Cyclic 6-Hydroxy Impurity Sodium Salt Isosulfan blue Keto N-Oxide Impurity Ivermectin Impurity F N-Nitroso des Methyl Tramadol/N-Nitroso-N-Desmethyl-Tramadol DL-beta-(3-Bromophenyl)alanine Tetrabutylammonium perchlorate N,O-Dimethylhydroxylamine hydrochloride (RS)-beta-Amino-beta-(4-bromophenyl)propionic acid 2-Amino-5-bromo-4-(trifluoromethyl)pyridine(RM for Indian lab) N,N CARBONYL DIIMIDAZOLE (R)-BoroLeu-(+)-Pinanediol-CF3COOH 1,4-bis(methylsulfonyl)butane 4-(5-amino-1-methyl-1h-benzoimidazol-2-yl)-butyric acid isopropyl ester. 5-Methyl-1,3-benzenediacetonitrile 4-Fluorothiophenol 1-methyl amino-2,4-dinitro benzene CSA (DL-10-Camphorsulfonic Acid) 2-Hydroxy-4-methylnicotinic acid 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine (2S)-1-((2S,3S)-3-(2-methylbutyl)-4-oxooxetan-2-yl)pentadecan-2-yl formylleucinate 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethane-1-sulfonyl chloride S-(1-(3,5-dichlorophenyl)-2,2,2-trifluoroethyl) ethanethioateRelated products of tetrahydrofuran

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