InChI=1S/C21H30O5S/c1-2-13-20(22)16-11-9-7-5-3-4-6-8-10-14-19-15-12-17-21(18-19)26-27(23,24)25/h2,7,9,11-12,15-18,20,22H,1,3-6,8,10,13-14H2,(H,23,24,25)/b9-7+,16-11?