 | C4X-159719 | N/A | Impurity | |
| Cloxacillin Impurity 19 |
 | C4X-15972 | 1642629-96-6 | Impurity | |
| Cloxacillin EP Impurity A |
 | C4X-15973 | 1642559-64-5 | Impurity | |
| Cloxacillin EP Impurity B |
| C4X-15974 | N/A | Impurity | |
| Clacillin impurity 4 |
 | C4X-15991 | 1210-35-1 | Impurity | |
| Cyclobenzaprine Impurity 1 |
 | C4X-15995 | 6682-26-4 | Impurity | |
| Cyclobenzaprine Impurity 5 |
 | C4X-15996 | 10354-00-4 | Impurity | |
| Cyclobenzaprine Impurity 6 |
 | C4X-16014 | 2477-61-4 | Impurity | |
| Cyproterone Impurity 4 |
 | C4X-16017 | 2668-74-8 | Impurity | |
| Cyproterone Acetate EP Impurity H |
 | C4X-16021 | 102961-72-8 | Impurity | |
| Dalbavancin Nucleus A40926(Mixture) |
