InChI=1/C22H24O10/c1-29-13-7-12(8-14(10-13)30-2)4-3-11-5-6-16(15(23)9-11)31-22-19(26)17(24)18(25)20(32-22)21(27)28/h3-10,17-20,22-26H,1-2H3,(H,27,28)/b4-3+