| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-103958 | 130927-68-3 | Impurity | |
| Donepezil Impurity 58 | ||||
 | C4X-103959 | 120013-57-2 | Impurity | |
| Donepezil Impurity 59 | ||||
| C4X-103960 | 7216-42-4 | Impurity | |
| Donepezil Impurity 60 | ||||
| C4X-103961 | 937362-16-8 | Impurity | |
| Donepezil Impurity 61 | ||||
| C4X-103962 | 120011-69-0 | Impurity | |
| Donepezil Related Compound A HCl | ||||
 | C4X-103963 | 2230493-73-7 | Impurity | |
| Donepezil Impurity 63 | ||||
| C4X-103964 | 172602-67-4 | Impurity | |
| Donepezil Impurity 64 | ||||
| C4X-103965 | 120013-56-1?free base? | Impurity | |
| Donepezil Impurity 65 HCl | ||||
| C4X-103967 | N/A | Impurity | |
| Donepezil Impurity 67 | ||||
| C4X-103968 | N/A | Impurity | |
| Donepezil impurity 68 | ||||
