 | C4X-15045 | 63-74-1 | Impurity | |
| Sulfadimethoxine EP Impurity E |
 | C4X-15047 | 80314-58-5 | Impurity | |
| Sulfadimethoxine Impurity |
 | C4X-15048 | 98627-35-1 | Impurity | |
| Sulfadimethoxine Impurity |
 | C4X-15049 | 61439-59-6 | Impurity | |
| Sulfadimethoxine Impurity |
 | C4X-15051 | 695-34-1 | Impurity | |
| Rifaximin EP Impurity A |
 | C4X-15053 | 14897-39-3 | Impurity | |
| Rifaximin EP Impurity C |
 | C4X-15056 | 14487-05-9 | Impurity | |
| Rifaximin EP Impurity F |
 | C4X-15057 | 80621-76-7 | Impurity | |
| Rifaximin EP Impurity G |
 | C4X-15062 | 2222-33-5 | Impurity | |
| Cyproheptadine Impurity 2 |
 | C4X-15063 | 3967-32-6 | Impurity | |
| Cyproheptadine EP Impurity C |
