InChI=1S/C21H30O5S/c1-2-3-4-6-10-15-20(22)16-11-8-5-7-9-13-19-14-12-17-21(18-19)26-27(23,24)25/h2,4,6,10,12,14-15,17-18,20,22H,1,3,5,7-9,11,13,16H2,(H,23,24,25)/b6-4+,15-10+