英文别名(2Z)-5,6-Dimethoxy-2-[(1-oxido-4-pyridinyl)methylene]-1-indanone; Donepezil Impurity 11; 2,3-Dihydro-5,6-dimethoxy-2-[(1-oxido-4-pyridinyl)methylene]-1H-inden-1-one; Donepezil Impurity P; Donepezil Pyridine Dehydro N-Oxide; Doneprzil Pyridine Dehydro N-Oxide