InChI=1S/C19H22O8S/c1-11-15-10-12(7-8-26-28(21,22)23)16(20)19(25-3)18(15)27-17(11)13-5-4-6-14(9-13)24-2/h4-6,9-11,17,20H,7-8H2,1-3H3,(H,21,22,23)