InChI=1S/C21H30O5S/c1-2-3-4-5-6-7-10-16-21(26-27(23,24)25)17-11-8-9-13-19-14-12-15-20(22)18-19/h2,4-5,7,10,12,14-15,18,21-22H,1,3,6,8-9,11,13,16-17H2,(H,23,24,25)/b5-4+,10-7+