 | C4X-142715 | N/A | Impurity | |
| Benserazide Impurity 15 |
 | C4X-142718 | 2144-08-3 | Impurity | |
| Benserazide Impurity 18 |
 | C4X-142719 | 487-70-7 | Impurity | |
| Benserazide Impurity 19 |
| C4X-14272 | N/A | Impurity | |
| Benserazide EP Impurity B DiHCl |
| C4X-142720 | 35094-87-2 | Impurity | |
| Benserazide Impurity 20 |
| C4X-142721 | 5625-41-2 | Impurity | |
| Benserazide Impurity 21 |
 | C4X-142722 | 13677-79-7 | Impurity | |
| Benserazide Impurity 22 |
| C4X-142723 | 64616-76-8 | Impurity | |
| Benserazide EP Impurity A |
| C4X-142724 | N/A | Impurity | |
| Benserazide EP Impurity B HCl |
| C4X-142725 | 787504-88-5 | Impurity | |
| Benserazide EP Impurity C |
