InChI=1/C20H18O2/c1-13-18(22)9-10-20(15-5-3-2-4-6-15)12-14-11-16(21)7-8-17(14)19(13)20/h2-8,11,21H,9-10,12H2,1H3/t20-/m0/s1 B68287058C90D19C