| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-112838 | 319491-68-4 | Impurity | |
| Sildenafil Impurity 38 | ||||
 | C4X-112839 | 76424-56-1 | Impurity | |
| Sildenafil Impurity 39 | ||||
| C4X-112840 | 1185292-79-8 | Impurity | |
| Sildenafil Impurity 40 | ||||
| C4X-112841 | 304435-83-4 | Impurity | |
| Sildenafil Impurity 41 | ||||
| C4X-112842 | 1441-87-8 | Impurity | |
| Sildenafil Impurity 42 | ||||
| C4X-112843 | N/A | Impurity | |
| Sildenafil Impurity 43 HCl | ||||
 | C4X-112845 | 1391054-00-4 | Impurity | |
| Sildenafil Impurity 45 | ||||
 | C4X-112847 | 247583-78-4 | Impurity | |
| Sildenafil Impurity 47 | ||||
 | C4X-11285 | 1058653-74-9 | Impurity | |
| Sildenafil Impurity 5 | ||||
| C4X-112850 | N/A | Impurity | |
| Sildenafil Impurity 50 HCl | ||||
