InChI=1S/C20H24O8S/c1-11-7-13-9-17(26-3)15(21)10-14(13)19(20(11,2)22)12-5-6-16(18(8-12)27-4)28-29(23,24)25/h5-6,8-11,19,21-22H,7H2,1-4H3,(H,23,24,25)