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