3-Methyl-1H-Pyrazole-4-Carbaldehyde
3-Methyl-1H-Pyrazole-4-Carbaldehyde
CAS: 112758-40-4
Molecular Formula: C5H6N2O
3-Methyl-1H-Pyrazole-4-Carbaldehyde - Names and Identifiers
3-Methyl-1H-Pyrazole-4-Carbaldehyde - Physico-chemical Properties
| Molecular Formula | C5H6N2O |
| Molar Mass | 110.11 |
| Density | 1.238±0.06 g/cm3(Predicted) |
| Melting Point | 107-108.5°C |
| Boling Point | 295.9±20.0 °C(Predicted) |
| Flash Point | 137.2°C |
| Vapor Presure | 0.00148mmHg at 25°C |
| pKa | 12.21±0.50(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.598 |
3-Methyl-1H-Pyrazole-4-Carbaldehyde - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - 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 - Wear suitable gloves. |
| WGK Germany | 3 |
| HS Code | 29331990 |
| Hazard Class | IRRITANT |
3-Methyl-1H-Pyrazole-4-Carbaldehyde - Reference Information
| Use | 3-methyl-1h-pyrrol-4-carboxaldehyde is an aldehyde derivative and can be used as an intermediate in organic synthesis. |
| preparation | in a ML three-necked flask equipped with a thermometer and a reflux tube were added acetone acetamide and anhydrous ethanol, add N,N-dimethylformamide under stirring, adjust PH = 2.5 with concentrated hydrochloric acid, heat to reflux, react for 12h, 30% sodium hydroxide solution was added to the reaction solution to adjust PH = 13, cooled, suction filtered, recrystallized with N-propanol to obtain the product, dried and weighed. 3-methyl -1H-pyrrole -4-formaldehyde was obtained. |
Last Update：2024-04-09 20:49:11
