| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-103917 | 127399-78-4 | Impurity | |
| Donepezil Impurity 17 | ||||
 | C4X-103918 | 90843-62-2 | Impurity | |
| Donepezil Impurity 18 | ||||
| C4X-103919 | N/A | Impurity | |
| Donepezil Impurity 19 | ||||
 | C4X-10392 | 120013-45-8 | Impurity | |
| Dehydrodeoxy Donepezil | ||||
 | C4X-103924 | 145546-80-1 | Impurity | |
| Donepezil EP impurity F | ||||
 | C4X-103925 | 120012-04-6 | Impurity | |
| Donepezil Impurity 25 | ||||
 | C4X-103927 | 120013-56-1 | Impurity | |
| Donepezil Impurity 27 | ||||
 | C4X-103928 | 2107-69-9 | Impurity | |
| Donepezil EP impurity B | ||||
| C4X-103929 | 197010-25-6 | Impurity | |
| Donepezil Impurity 29 | ||||
 | C4X-10393 | 4803-57-0 | Impurity | |
| Donepezil EP impurity D | ||||
