InChI=1S/C21H32O8S/c1-4-21(25)10-15(23)17-13-6-5-11-7-12(29-30(26,27)28)8-16(24)20(11,3)18(13)14(22)9-19(17,21)2/h8,11,13-15,17-18,22-23,25H,4-7,9-10H2,1-3H3,(H,26,27,28)/t11?,13?,14?,15?,17?,18?,19-,20+,21+/m0/s1