InChI=1S/C20H28O6S/c1-15(7-5-8-16(2)13-19(21)22)10-11-18-17(3)9-6-12-20(18,4)14-26-27(23,24)25/h5,7-8,10-11,13H,6,9,12,14H2,1-4H3,(H,21,22)(H,23,24,25)/b8-5+,11-10+,15-7+,16-13+