InChI=1S/C22H18O13/c1-31-10-3-2-6-16-12(7-4-8(23)9(24)5-11(7)32-16)21(30)33-17(6)18(10)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)