| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-1128251 | 263897-18-3 | Impurity | |
| Sildenafil Impurity 51 | ||||
| C4X-1128252 | N/A | Impurity | |
| Sildenafil Impurity 252 | ||||
| C4X-112827 | 372089-76-4 | Impurity | |
| Sildenafil Impurity 27 | ||||
 | C4X-112828 | 139756-26-6 | Impurity | |
| Sildenafil Impurity 28 | ||||
| C4X-112829 | 1093065-15-6 | Impurity | |
| Sildenafil Impurity 29 | ||||
 | C4X-11283 | 139756-02-8 | Impurity | |
| Sildenafil Impurity 3 | ||||
 | C4X-112830 | 139755-95-6 | Impurity | |
| Sildenafil Impurity 30 | ||||
| C4X-112831 | N/A | Impurity | |
| Sildenafil Impurity 31 | ||||
| C4X-112833 | N/A | Impurity | |
| Sildenafil Impurity 33 | ||||
| C4X-112834 | N/A | Impurity | |
| Sildenafil Impurity 34 | ||||
