InChI=1S/C22H20O13/c1-32-19-10(25)6-13-14(15(19)26)9(24)5-11(33-13)7-2-3-8(23)12(4-7)34-22-18(29)16(27)17(28)20(35-22)21(30)31/h2-6,16-18,20,22-23,25-29H,1H3,(H,30,31)