Donepezil Impurity 13

Dihydro Donepezil (Mixture of Diastereomers) Donepezil Impurity 8 5,6-Dimethoxy-2-(piperidin-4-yl)methylene-indan-1-one 5,6-DIMETHOXY-2-PYRIDIN-4-YLMETHYL-INDAN-1-ONE Donepezil Impurity 2

1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-yl)methylpyridinium Bromide Dehydrodeoxy Donepezil (Donepezil Impurity) Donepezil Impurity 2-[(E)-(1-BENZYL-4-PIPERIDINYL)METHYLIDENE]-5,6-DIMETHOXY-1-INDANONE Donepezil Impurity 17 HCl

Donepezil Impurity 7 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine Hydrochloride Donepezil Impurity 3 5,6-Dimethoxy-2-(4-piperidinylmethyl)-1-indanone hydrochloride Donepezil Impurity 4

Donepezil Impurity 6 Donepezil Impurity 16 Donepezil Impurity 11