InChI=1S/C22H18O13/c23-7-3-11-13(12(4-7)34-22-18(28)16(26)17(27)20(35-22)21(29)30)14(24)9(5-31-11)8-1-2-10-19(15(8)25)33-6-32-10/h1-5,16-18,20,22-23,25-28H,6H2,(H,29,30)