InChI=1S/C19H22O6S/c20-17(4-2-1-3-15-5-11-18(21)12-6-15)10-7-16-8-13-19(14-9-16)25-26(22,23)24/h5-6,8-9,11-14,21H,1-4,7,10H2,(H,22,23,24)