5,6-dimethoxy-1-indanone CAS: 2107-69-9

4-pyridine carboxaldehyde  CAS: 872-85-5

1-Benzyl-4-Piperidine carboxaldehyde  CAS: 22065-85-6

1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylindenemethyl)-piperidine CAS:120014-07-5

2,3-dihydro-5,6-dimethoxy-2-((piperidin-4-yl)methyl)inden-1-one HCL CAS:120013-39-0

5,6-dimethoxy-2-(4-pyridylmethylene)-1-Indanone CAS: 4803-74-1

Donepezil Base CAS:120014-06-4