InChI=1S/C22H24O10/c1-29-15-9-11(5-7-13(15)23)3-4-12-6-8-14(16(10-12)30-2)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+