RARECHEM AM UC 0123
Methyl 3-amino-2-thiophene carboxylate
CAS: 22288-78-4
Molecular Formula: C6H7NO2S
RARECHEM AM UC 0123 - Names and Identifiers
RARECHEM AM UC 0123 - Physico-chemical Properties
| Molecular Formula | C6H7NO2S |
| Molar Mass | 157.19 |
| Density | 1.274 (estimate) |
| Melting Point | 62-64 °C (lit.) |
| Boling Point | 100-102 °C/0.1 mmHg (lit.) |
| Flash Point | 100-102°C/0.1mm |
| Water Solubility | Slightly soluble in water. |
| Vapor Presure | 0.000126mmHg at 25°C |
| Appearance | White solid |
| Color | Beige to beige-brown |
| BRN | 1365614 |
| pKa | 1.86±0.10(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.5500 (estimate) |
| MDL | MFCD00009765 |
| Physical and Chemical Properties | This product is a white solid, m. P. 62~64 ℃, B. P. 100~102 ℃/13.3, insoluble in water, soluble in alcohol, toluene, xylene and other solvents. |
| Use | Used as a pesticide, pharmaceutical intermediates, is the pesticide thiahuanglong, broad leaf powder, the intermediate of the synthesis of drug tenoxicam |
RARECHEM AM UC 0123 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| RTECS | XM8347500 |
| TSCA | Yes |
| HS Code | 29349990 |
| Hazard Class | IRRITANT |
RARECHEM AM UC 0123 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | Methyl 3-amino-thiophene-2-carboxylate is an intermediate of the sulfonylurea herbicide thiensulfuron. It is used as an intermediate for pesticides and pharmaceuticals. It is an intermediate for the synthesis of pesticides thioxicam, broadleaf powder, and the drug tenoxicam |
| production method | its preparation method is to add sodium methoxide solution, methanol and methyl mercaptoacetate into the reaction kettle, start stirring and cooling, drop a certain amount of dichloroacrylonitrile methanol solution into the kettle for about 4-5 hours, keep the temperature for 16 hours after dropping, then heat to evaporate methanol, add water to cool to obtain crystallization, and filter to obtain the finished product. |
Last Update：2024-04-10 22:30:50
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