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