InChI=1S/C19H26O7S/c1-19-8-7-12-11(13(19)5-6-15(19)20)4-3-10-9-14(26-27(22,23)24)18(25-2)17(21)16(10)12/h9,11-13,15,20-21H,3-8H2,1-2H3,(H,22,23,24)/t11?,12?,13?,15?,19-/m0/s1