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