InChI=1S/C20H28O6S/c1-14(7-6-8-15(2)13-19(21)22)9-11-17-16(3)10-12-18(20(17,4)5)26-27(23,24)25/h6-9,11,13,18H,10,12H2,1-5H3,(H,21,22)(H,23,24,25)/b8-6+,11-9+,14-7-,15-13+