 | C4X-182121 | N/A | Impurity | |
| Polaprezinc Impurity 21 |
 | C4X-18213 | 103646-38-4 | Impurity | |
| Polaprezinc Impurity 3 |
| C4X-18214 | 5853-00-9 | Impurity | |
| Polaprezinc Impurity 4 |
| C4X-18215 | N/A | Impurity | |
| Polaprezinc Impurity 5 trifluoroacetate |
| C4X-18217 | 7389-97-1(Free Base) | Impurity | |
| Polaprezinc Impurity 8 Trifluoroacetate |
| C4X-18218 | 7389-97-1 | Impurity | |
| S-Polaprezinc Impurity 8 |
| C4X-18219 | N/A | Impurity | |
| Polaprezinc Impurity 9 |
 | C4X-18221 | 62621-13-0 | Impurity | |
| Leuprorelin EP Impurity A TFA |
| C4X-182211 | N/A | Impurity | |
| Leuprorelin EP Impurity J Trifluoroacetic acid |
| C4X-182212 | N/A | Impurity | |
| Leuprorelin EP Impurity K Acetate |
