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