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