InChI=1S/C22H18O13/c1-31-6-4-9(24)11-10(5-6)32-16-7-2-3-8(23)18(17(7)33-21(30)12(11)16)34-22-15(27)13(25)14(26)19(35-22)20(28)29/h2-5,13-15,19,22-27H,1H3,(H,28,29)