InChI=1S/C21H30O5S/c1-2-20(22)16-12-10-8-6-4-3-5-7-9-11-14-19-15-13-17-21(18-19)26-27(23,24)25/h2,6,8,12-13,15-18,20,22H,1,3-5,7,9-11,14H2,(H,23,24,25)/b8-6+,16-12+