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