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