InChI=1S/C22H20O13/c1-32-13-6-12-14(10(25)5-11(33-12)7-2-3-8(23)9(24)4-7)15(26)19(13)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)