InChI=1S/C18H24O7S/c1-17-6-4-11-12(14(17)5-7-18(17,20)21)3-2-10-8-16(25-26(22,23)24)15(19)9-13(10)11/h8-9,11-12,14,19-21H,2-7H2,1H3,(H,22,23,24)/t11?,12?,14?,17-/m0/s1