InChI=1/C22H22O10/c1-9-17(25)19(27)20(28)22(30-9)32-16-6-10-3-4-12(23)8-14(10)31-21(16)11-5-13(24)18(26)15(7-11)29-2/h3-9,17,19-20,22,25,27-28H,1-2H3,(H2-,23,24,26)/p+1