 | C4X-106725 | 263552-76-7 | Impurity | |
| Levetiracetam impurity 25 |
 | C4X-106726 | 20496-01-9 | Impurity | |
| Levetiracetam Impurity 26 |
| C4X-106728 | 143164-46-9 | Impurity | |
| Levetiracetam Impurity 28 |
| C4X-106729 | 3153-36-4 | Impurity | |
| rac-Levetiracetam (including levetiracetam and R-isomer) |
 | C4X-10673 | 142-08-5 | Impurity | |
| Levetiracetam EP Impurity C |
 | C4X-106730 | 5959-29-5 | Impurity | |
| Levetiracetam Impurity 30 |
| C4X-106732 | 93778-15-5 | Impurity | |
| Levetiracetam Impurity 32 |
| C4X-106733 | 2245069-23-0 | Impurity | |
| Levetiracetam Impurity 33 |
| C4X-106734 | 53726-14-0 | Impurity | |
| Levetiracetam Impurity 34 |
| C4X-106735 | 2259329-89-8 | Impurity | |
| Levetiracetam Impurity 35 |
