InChI=1S/C19H22O6S/c20-17(12-11-16-6-2-4-8-19(16)21)7-3-1-5-15-9-13-18(14-10-15)25-26(22,23)24/h2,4,6,8-10,13-14,21H,1,3,5,7,11-12H2,(H,22,23,24)