Direct Green 43
- Molecular Weight: 0
What is Direct Green 43?
Preparation
5-Acetamido-8-amino-2-naphthalenesulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, its product to diazo, and 2-Methyl-2H-indazole coupling, and then hydrolysis acetyl amino.
Properties and Applications
dark blue light green. Soluble in water for dark green light grey-blue, soluble in ethanol.concentrated sulfuric acid in light gray black, Gray light purple for diluted. The dye solution to join strong hydrochloric acid have blue-ray black precipitation, add thick sodium hydroxide solution for red light blue-black, precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| AATCC | 3 | 3-4 | 3 | 4 | 4 | ||
Safety information for Direct Green 43
New Products
4,4-Difluoropiperidine hydrochloride tert-butyl 9-methoxy-3-azaspiro[5.5]undecane-3-carboxylate Indole Methyl Resin N-Isopropylurea N,N-Dicyclohexylcarbodiimide(DCC) MELDRUMS ACID 5-METHYLISOXAZOLE-4-CARBOXYLIC ACID Magnessium Bis glycinate Zinc ascorbate 1-bromo-2-butyne 2-acetamidophenol 9(10H)-anthracenone Erythrosin B, 4-Piperidinopiperidine 2-((4-morpholinophenylamino) (methylthio) methylene) malononitrile 2,4-dihydroxybenzaldehyde 3-(4-morpholinophenylamino)-5-amino-1H-pyrazole-4-carbonitrile Methyl 2-methylquinoline-6-carboxylate 2,6-dichloro-4-nitropyridine 4-Bromo-2-chlorobenzonitrile 2-(benzylamino)acetic acid hydrochloride 4-(tert-Butoxycarbonylamino)but- 2-ynoic acid 3,4-dihydro-2H-benzo[b][1,4]dioxepine 1-Phenyl-1-cycloprppanecarboxylicacidRelated products of tetrahydrofuran
![1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt](https://img.chemicalbook.in/CAS/20200119/GIF/6428-95-1.gif)
![1-Naphthalenesulfonic acid, 6-[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-8-hydroxy-6-sulfo-1-naphthalenyl]azo]-, trisodium salt](https://img.chemicalbook.in/CAS/20200331/GIF/5938-86-3.gif)
![tetrasodium 5-[[6-[(3-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-6-ethoxy-8-[[7-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthalene-2-sulphonate](https://img.chemicalbook.in/CAS/GIF/6428-19-9.gif)
![2,7-Naphthalenedisulfonic acid, 5-[(4-aminobenzoyl)amino]-3-[[4-[(2-chloro-6-methyl-4-sulfophenyl)azo]-2-ethoxy-6-sulfo-1-naphthalenyl]azo]-4-hydroxy-, tetrasodium salt](https://img.chemicalbook.in/CAS/20200401/GIF/5852-23-3.gif)
![4-[(4-Amino-2-sodiosulfophenyl)azo]-2-ethoxy-1'-hydroxy-6'-[[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoyl]amino][1,2'-azobisnaphthalene]-3',6-disulfonic acid disodium salt](https://img.chemicalbook.in/CAS/GIF/6428-23-5.gif)
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