| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-108711 | 171596-43-3?free base? | Impurity | |
| Tadalafil Impurity 11 HCl | ||||
| C4X-1087110 | N/A | Impurity | |
| Tadalafil Impurity 110 | ||||
 | C4X-1087113 | 68807-89-6 | Impurity | |
| Tadalafil Impurity 113 | ||||
| C4X-1087115 | 1910845-11-2 | Impurity | |
| Tadalafil Impurity 115 | ||||
| C4X-1087116 | N/A | Impurity | |
| Tadalafil Impurity 116 | ||||
| C4X-1087117 | N/A | Impurity | |
| Tadalafil Impurity 117 | ||||
| C4X-1087118 | N/A | Impurity | |
| Tadalafil Impurity 118 | ||||
| C4X-1087119 | N/A | Impurity | |
| Tadalafil Impurity 119 | ||||
| C4X-108712 | 171596-44-4 (free base) | Impurity | |
| Tadalafil Impurity 12 HCl | ||||
| C4X-1087120 | N/A | Impurity | |
| Tadalafil Impurity 120 | ||||
