InChI=1S/C19H24O7S/c1-19-14(5-6-17(19)20)11-4-3-10-7-16(26-27(22,23)24)15(25-2)8-12(10)13(11)9-18(19)21/h7-8,11,13-14,18,21H,3-6,9H2,1-2H3,(H,22,23,24)/t11?,13?,14?,18?,19-/m0/s1