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