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