358629-47-7
358629-47-7 structure
- Name: Levetiracetam impurity B
- Chemical Name: (Z)-2-(2-oxopyrrolidin-1-yl)but-2-enamide
- CAS Number: 358629-47-7
- Molecular Formula: C8H12N2O2
- Molecular Weight: 168.193
- Catalog: analytical chemistry Standard Pharmacopoeia Standards and Magazine Standards
- Create Date: 2017-07-11 14:58:06
- Modify Date: 2024-01-16 20:48:30
| Name | (Z)-2-(2-oxopyrrolidin-1-yl)but-2-enamide |
|---|---|
| Synonyms |
UNII-M64Y2GM5FI
2-(2-Oxo-pyrrolidin-1-yl)-but-2-eno Levetiracetam specified impurity B [EP] 2-(2-Oxopyrrolidin-1-yl)but-2-enamide,(2Z) (2Z)-2-(2-Oxo-1-pyrrolidinyl)-2-butenamide Levetiracetam impurity B 1-Pyrrolidineacetamide, α-ethylidene-2-oxo-, (αZ)- |
| Density | 1.2±0.1 g/cm3 |
|---|---|
| Boiling Point | 443.0±28.0 °C at 760 mmHg |
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | 168.193 |
| Flash Point | 221.7±24.0 °C |
| Exact Mass | 168.089874 |
| PSA | 64.39000 |
| LogP | -0.42 |
| Vapour Pressure | 0.0±1.1 mmHg at 25°C |
| Index of Refraction | 1.553 |
| HS Code | 2933790090 |
|---|
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |