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