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