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