InChI=1S/C20H26N2O8S2/c1-22(2)17(23)12-21-15-6-4-5-7-16(15)31-19(13-8-10-14(29-3)11-9-13)18(20(24)25)30-32(26,27)28/h4-11,17-19,21,23H,12H2,1-3H3,(H,24,25)(H,26,27,28)