InChI=1S/C21H24O9S/c1-4-6-12-11-15(23)29-19-13-8-9-21(2,3)30-20(13)17(18(24)16(12)19)14(22)7-5-10-28-31(25,26)27/h8-9,11,24H,4-7,10H2,1-3H3,(H,25,26,27)