CI 50325
- CAS NO.：6837-46-3
- Empirical Formula: C29H23N4NaO7S2
- Molecular Weight: 625.63
- Update Date: 2024-03-19 16:39:57
What is CI 50325?
Preparation
6,8-Bis(phenylamino)naphthalene-1-sulfonic acid?and 2,5-Diamino-4-methoxybenzenesulfonic acid condensation, and then product (add) ammonia in the cuprous oxide catalyst for the air oxidation.
Synthesis
Wool Fast Violet B 21, C.I. 50 325 [6837-46- 3], from 1,3-bis(phenylamino)naphthalene-8- sulfonic acid and 2-methoxy-1,4-phenylenediamine- 5-sulfonic acid proceeds differently. In the cyclization step the methoxyl group is split off as methanol. Therefore, the dye can also be synthesized from 1,4-phenylenediamine-2-sulfonic acid.
Properties and Applications
blue purple. Soluble in water and ethanol for red light purple. The strong sulfuric acid for green, purple for red after diluted. In water solution is a deep red to join sodium hydroxide, and precipitation.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3 | 3-4 | 4 | 4 | 3-4 | |||
Safety information for CI 50325
New Products
2-Ethoxyphenol Methyl 2-methoxy-5-sulfamoylbenzoate Ethyl 2-chloro-2-(2-(4-methoxyphenyl)hydrazono)acetate 3,6-Dichloropyridazine 3,6-Dichloro-4-Isopropylpyridazine 2-[(2-Ethoxyphenoxy)methyl]oxirane m-Tolualdehyde p-Anisaldehyde 2-Bromobenzaldehyde 4-Fluorobenzaldehyde 1-Propyl-4-piperidone 3-Amino-3-(3-fluorophenyl)propanoic acid 6-Methyl-2-pyridinemethanol 2-Pyridinecarboxaldehdye tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate 1-Indanone 2-Chloromethyl-6-methyl-pyridine 4-Morpholinoaniline Abiraterone Ethyl Ether 1-nitro-3,5-dimethyl adamantine (NMEM) Vardenafil Bis-sulphonamide(Dimer) 3-(2-aminoethyl) benzene sulfonamide Nabumetone Impurity 5 2,2-dibromo-1-cyclopropyl-2-(2-fluorophenyl)ethan-1-oneRelated products of tetrahydrofuran
![disodium 4,4'-[(1,4-diamino-9,10-dihydro-9,10-dioxo-2,3-anthrylene)bis(oxy)]bis[benzenesulphonate]](https://img.chemicalbook.in/CAS/GIF/6408-73-7.gif)
![N-[4-[Bis[4-(dimethylamino)phenyl]methylene]-2-methyl-2,5-cyclohexadien-1-ylidene]-3-sulfonatobenzenemethanaminium](https://img.chemicalbook.in/CAS/GIF/5844-05-3.gif)
![5-Methyl-2-[(2,7-dihydro-3-methyl-2,7-dioxo-3H-benzo[e]perimidin-6-yl)amino]benzenesulfonic acid sodium salt](https://img.chemicalbook.in/CAS/GIF/6871-89-2.gif)
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