5-Chloro-4-Amino-1,2,3-Benzothiadiazole
4-Amino-5-chloro-2,1,3-benzothiadiazole
CAS: 30536-19-7
Molecular Formula: C6H4ClN3S
5-Chloro-4-Amino-1,2,3-Benzothiadiazole - Names and Identifiers
5-Chloro-4-Amino-1,2,3-Benzothiadiazole - Physico-chemical Properties
| Molecular Formula | C6H4ClN3S |
| Molar Mass | 185.63 |
| Density | 1.632±0.06 g/cm3(Predicted) |
| Melting Point | 89 °C |
| Boling Point | 316.4±22.0 °C(Predicted) |
| Flash Point | 145.1°C |
| Solubility | DMSO (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.000412mmHg at 25°C |
| Appearance | neat |
| Color | Brown |
| pKa | -0.16±0.48(Predicted) |
| Storage Condition | -20°C Freezer |
| Refractive Index | 1.781 |
| MDL | MFCD00465908 |
5-Chloro-4-Amino-1,2,3-Benzothiadiazole - Risk and Safety
| HS Code | 2934990002 |
5-Chloro-4-Amino-1,2,3-Benzothiadiazole - Introduction
Nature:
-Appearance: 4-Amino-5-chloro-2,1,3-benzothiadiazole is a white or pale yellow crystalline powder.
-Solubility: It is almost insoluble in water, but soluble in organic solvents such as chloroform and alcohol.
-Stability: 4-Amino-5-chloro-2,1,3-benzothiadiazole is a stable compound, it will not easily decompose at room temperature.
Use:
- 4-Amino-5-chloro-2,1,3-benzothiadiazole is commonly used in the preparation of dyes and pigments, especially as a component of blue and green dyes.
-It is also used as an intermediate in organic synthesis for the synthesis of other compounds.
Method:
- 4-Amino-5-chloro-2,1,3-benzothiadiazole can be obtained by reacting benzothiadiazole with nitrosomethane. Specific steps include:
1. Benzothiadiazole is dissolved in alcohol solvent.
2. Slowly add nitrosomethane at low temperature.
3. After the reaction, 4-Amino-5-chloro-2,1,3-benzothiadiazole was precipitated.
4. Further purification can be carried out by methods such as crystallization or column chromatography.
Safety Information:
- 4-Amino-5-chloro-2,1,3-benzothiadiazole has no obvious harm to human body and environment under normal circumstances.
-When using or handling, follow appropriate laboratory safety practices, including wearing protective gloves, glasses, and laboratory coats.
-When in contact with skin or eyes, rinse immediately with plenty of water. Seek professional medical help if necessary.
-When using or storing, avoid contact with strong oxidants and combustibles to prevent danger.
Last Update：2024-04-09 15:17:56
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