| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-10776 | 1367369-77-4 | Impurity | |
| Entecavir EP Impurity B | ||||
 | C4X-107760 | 142217-77-4 | Impurity | |
| Entecavir Impurity 60 | ||||
 | C4X-107761 | 1907700-40-6 | Impurity | |
| Entecavir Impurity 61 | ||||
| C4X-107762 | N/A | Impurity | |
| Entecavir Impurity 62 | ||||
| C4X-107763 | N/A | Impurity | |
| Entecavir Impurity 63 | ||||
| C4X-107764 | N/A | Impurity | |
| Entecavir Impurity 64 | ||||
| C4X-107765 | N/A | Impurity | |
| Entecavir Impurity | ||||
| C4X-107768 | N/A | Impurity | |
| Entecavir Impurity 68 | ||||
| C4X-107769 | N/A | Impurity | |
| Entecavir Impurity 69 | ||||
 | C4X-10777 | 188399-46-4 | Impurity | |
| "(1R,3S,4S)-Entecavir" | ||||
