 | C4X-18998 | 500-98-1 | Impurity | |
| Benzylpenicillin Impurity 8(Benzylpenicillin CP Impurity H) |
 | C4X-18999 | 3264-88-8 | Impurity | |
| Benzylpenicillin CP Impurity I |
 | C4X-19002 | N/A | Impurity | |
| Dimenhydrinate EP Impurity B |
| C4X-19004 | N/A | Impurity | |
| Dimenhydrinate EP Impurity D DiHCl |
| C4X-19006 | 17471-10-2 | Impurity | |
| Dimenhydrinate EP Impurity F |
 | C4X-19007 | 4921-49-7 | Impurity | |
| Dimenhydrinate EP Impurity E |
 | C4X-19011 | 1006-23-1 | Impurity | |
| Triamterene EP Impurity A |
 | C4X-19012 | 19375-89-4 | Impurity | |
| Triamterene EP Impurity B |
 | C4X-19013 | 19152-93-3 | Impurity | |
| Triamterene EP Impurity C |
| C4X-19015 | 19375-89-4 | Impurity | |
| Triamterene Impurity 5 |
