InChI=1S/C22H20O13/c23-9-3-10-7(1-12(9)34-21-17(26)15(24)16(25)18(35-21)20(27)28)19-22(29,5-30-10)8-2-13-14(32-6-31-13)4-11(8)33-19/h1-4,15-19,21,23-26,29H,5-6H2,(H,27,28)