InChI=1S/C20H30O5S/c1-15(11-12-18-16(2)10-7-13-20(18,4)5)8-6-9-17(3)19(14-21)25-26(22,23)24/h6,8-9,11-12,14,17,19H,7,10,13H2,1-5H3,(H,22,23,24)/b9-6+,12-11+,15-8+