(2Z)-2-[(1-benzylpiperidin-4-yl)methylidene]-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one

dehydro donepezi ; 2-(1-benzylpiperidin-4-ylmethylidene)-5,6-dimethoxyindan-1-one ; donepezil related compound (e/z mixture) ; 1-benzyl-4-(5,6-dimethoxy-1-oxoindan-2- ; 1-benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylindenemethyl)piperidine ; 1-benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylindenemet ; 2-[(1-benzyl-4-piperidyl)methyleen]-5,6-dimethoxyindan-1-on ; donepezil usp rc a ; 1-benzyl-4-(5,6-dimethoxy-1-ox ; dehydro donepezil (donepezil impurity)