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