InChI=1/C14H20NO5S/c1-9(13(16)17)21(18,19)15-11-8-10(14(2,3)4)6-7-12(11)20-5/h6-9H,1-5H3,(H,16,17)/q-1/p-1/t9-/m0/s1/fC14H19NO5S/q-2 218AA226F774F02D