2,3-PYRAZINEDICARBOXLIC ANHYDRIDE
2,3-pyrazinedicarboxylic anhydride
CAS: 4744-50-7
Molecular Formula: C6H2N2O3
2,3-PYRAZINEDICARBOXLIC ANHYDRIDE - Names and Identifiers
2,3-PYRAZINEDICARBOXLIC ANHYDRIDE - Physico-chemical Properties
| Molecular Formula | C6H2N2O3 |
| Molar Mass | 150.09 |
| Density | 1.686±0.06 g/cm3(Predicted) |
| Melting Point | 210°C (dec.)(lit.) |
| Boling Point | 357.3±22.0 °C(Predicted) |
| Flash Point | 169.9°C |
| Solubility | Actonitrile (Slightly), DMSO |
| Vapor Presure | 2.76E-05mmHg at 25°C |
| Appearance | Solid |
| Color | White to light brown crystalline powder |
| pKa | -3.43±0.20(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.634 |
| MDL | MFCD00179418 |
| Physical and Chemical Properties | crystals. Melting point 223-224 C (210 C decomposition). |
| Use | An intermediate of pyrazinamide. |
2,3-PYRAZINEDICARBOXLIC ANHYDRIDE - 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. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29349990 |
| Hazard Note | Irritant |
2,3-PYRAZINEDICARBOXLIC ANHYDRIDE - Reference Information
| use | intermediate of pyrazinamide. |
| production method | o-phenylenediamine can be cycled with glyoxal to form benzopyrazine, which is oxidized to obtain pyrazine dicarboxylic acid, which is eliminated (dehydrated) under the action of acetic anhydride to obtain the product. |
Last Update：2024-04-09 20:49:11
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