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