InChI=1S/C20H24O9S/c1-13(4-6-17(14(2)12-21)29-30(23,24)25)8-9-27-18-10-15(26-3)11-19-16(18)5-7-20(22)28-19/h5,7-8,10-11,17,21H,2,4,6,9,12H2,1,3H3,(H,23,24,25)