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