InChI=1S/C22H24O12/c1-22(2,34-21-15(27)13(25)14(26)18(33-21)20(28)29)11(23)8-31-19-16-10(5-6-30-16)7-9-3-4-12(24)32-17(9)19/h3-7,11,13-15,18,21,23,25-27H,8H2,1-2H3,(H,28,29)