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