2-(3,4-dimethoxyphenyl)-1-(2-hydroxy-3,4-dimethoxyphenyl)ethanone InChI=1/C18H20O6/c1-21-14-7-5-11(10-16(14)23-3)9-13(19)12-6-8-15(22-2)18(24-4)17(12)20/h5-8,10,20H,9H2,1-4H ethanone, 2-(3,4-dimethoxyphenyl)-1-(2-hydroxy-3,4-dimethoxyphenyl)-