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