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