 | C4X-20147 | N/A | Impurity | |
| Des-Leu Cetrorelix Acetate |
| C4X-20148 | N/A | Impurity | |
| Des-Arg Cetrorelix Acetate |
| C4X-20149 | N/A | Impurity | |
| Des-Pro Cetrorelix Acetate |
 | C4X-20151 | 1627731-60-5 | Impurity | |
| Zoledronic Acid EP Impurity A |
| C4X-201510 | N/A | Impurity | |
| Zoledronic Acid Impurity 10 |
| C4X-20152 | 2043362-88-3 | Impurity | |
| Zoledronic Acid EP Impurity B |
| C4X-20153 | N/A | Impurity | |
| Zoledronic Acid Impurity 3 |
 | C4X-20154 | 117255-11-5 | Impurity | |
| Zoledronic Impurity 4 |
 | C4X-20155 | 22884-10-2 | Impurity | |
| Zoledronic Acid Impurity 5 |
| C4X-20156 | 17450-34-9 | Impurity | |
| Zoledronic Acid Impurity 6 |
