 | C4X-157552 | N/A | Impurity | |
| Caspofungin Impurity 52 Acetate Salt |
| C4X-157553 | 251095-73-5 (free base) | Impurity | |
| Caspofungin Impurity C Acetate salt |
| C4X-15756 | N/A | Impurity | |
| Caspofungin Impurity B |
| C4X-157710 | N/A | Impurity | |
| Cefazolin EP Impurity L |
| C4X-157711 | 478494-71-2 | Impurity | |
| Cefazolin Impurity 11?Cefazolin USP Impurity E? |
 | C4X-157713 | 21732-17-2 | Impurity | |
| Cefazolin USP RC A |
 | C4X-157718 | 56842-77-4 | Impurity | |
| Cefazolin EP Impurity C |
 | C4X-157719 | 32510-61-5 | Impurity | |
| Cefazolin EP Impurity D(Cefazolin USP RC J) |
 | C4X-157720 | 2384108-14-7 | Impurity | |
| Cefazolin EP Impurity B |
 | C4X-157721 | 1172998-53-6 | Impurity | |
| Cefazolin EP Impurity G |
