InChI=1S/C19H22O6S/c1-11-7-14-9-18(24-3)17(20)10-16(14)19(12(11)2)13-5-4-6-15(8-13)25-26(21,22)23/h4-6,8-12,19-20H,7H2,1-3H3,(H,21,22,23)