 | C4X-201413 | N/A | Impurity | |
| Deamidated Cetrorelix |
| C4X-201415 | N/A | Impurity | |
| Cetrorelix Dimer |
 | C4X-20151 | 1627731-60-5 | Impurity | |
| Zoledronic Acid EP Impurity A |
| C4X-20152 | 2043362-88-3 | Impurity | |
| Zoledronic Acid EP Impurity B |
 | C4X-20155 | 22884-10-2 | Impurity | |
| Zoledronic Acid Impurity 5 |
| C4X-20156 | 17450-34-9 | Impurity | |
| Zoledronic Acid Impurity 6 |
 | C4X-20161 | 187746-97-0 | Impurity | |
| Lornoxicam Impurity 1 |
 | C4X-201612 | 2469039-23-2 | Impurity | |
| Lornoxicam Impurity 12 |
| C4X-201613 | 2322849-92-1 | Impurity | |
| Lornoxicam Impurity 13 |
| C4X-201616 | 70374-37-7 | Impurity | |
| Lornoxicam Impurity 16 |
