InChI=1/C18H19NO4S/c1-13(12-24)18(22)19(11-17(20)21)14-7-9-16(10-8-14)23-15-5-3-2-4-6-15/h2-10,13,24H,11-12H2,1H3,(H,20,21)/p-1/t13-/m1/s1/fC18H18NO4S/q-1 22335B30D0E6DF36