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