 | C4X-20132 | 14206-58-7 | Impurity | |
| Oxytetracycline EP Impurity A |
 | C4X-20133 | 60-54-8 | Impurity | |
| Oxytetracycline EP Impurity B |
 | C4X-20134 | 7647-65-6 | Impurity | |
| Oxytetracycline EP Impurity C |
 | C4X-20136 | 18751-99-0 | Impurity | |
| Oxytetracycline EP Impurity E |
 | C4X-20138 | 4660-26-8 | Impurity | |
| Oxytetracycline EP impurity F(Anhydrooxytetracycline) |
| C4X-20139 | N/A | Impurity | |
| Oxytetracycline impurity 9 |
| C4X-20141 | N/A | Impurity | |
| Des-D-Nal Cetrorelix Acetate |
| C4X-201410 | N/A | Impurity | |
| Des-D-Ala Cetrorelix Acetate |
| C4X-201411 | N/A | Impurity | |
| Des-Ac Cetrorelix Acetate |
| C4X-201413 | N/A | Impurity | |
| Deamidated Cetrorelix |
