InChI=1S/C21H24O8S/c1-21(2)12-17(29-30(24,25)26)19-16(28-21)11-15(27-3)18(20(19)23)14(22)10-9-13-7-5-4-6-8-13/h4-8,11,17,23H,9-10,12H2,1-3H3,(H,24,25,26)