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