InChI=1S/C23H24O10/c1-32-17-10-13(3-6-15(17)25)4-7-19(27)23(31,21(29)12-24)20(28)8-5-14-9-16(26)22(30)18(11-14)33-2/h3-11,21,24-26,29-31H,12H2,1-2H3/b7-4+,8-5+