InChI=1S/C19H26O7S/c1-4-6-7-8-9-13-17-19(25-17)18(26-27(21,22)23)14-11-10-12-16(5-2)24-15(3)20/h5,16-19H,2,4,6-9,13H2,1,3H3,(H,21,22,23)