| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-112814 | 1094598-75-0 | Impurity | |
| Sildenafil EP Impurity B | ||||
 | C4X-112815 | 2512206-40-3 | Impurity | |
| Sildenafil Impurity 15 | ||||
| C4X-112816 | 1971915-89-5 | Impurity | |
| Sildenafil Impurity 16 | ||||
 | C4X-112817 | 139755-82-1 | Impurity | |
| Sildenafil EP Impurity F (N-Desmethyl Sildenafil) | ||||
 | C4X-112818 | 139755-91-2 | Impurity | |
| Sildenafil EP Impurity C | ||||
 | C4X-112819 | 1346602-67-2 | Impurity | |
| Sildenafil EP Impurity G | ||||
| C4X-11282 | 332374-42-2 | Impurity | |
| Sildenafil Impurity 2 | ||||
 | C4X-112820 | 1357931-55-5 | Impurity | |
| Sildenafil EP Impurity D | ||||
 | C4X-112821 | 268204-00-8 | Impurity | |
| Sildenafil Impurity 21 | ||||
| C4X-112822 | N/A | Impurity | |
| Sildenafil Impurity 22 HCl | ||||
