InChI=1/C16H16N2O5S/c1-22-13-7-5-6-12(10-13)16(19)23-18-15(17)11-24(20,21)14-8-3-2-4-9-14/h2-10H,11H2,1H3,(H2,17,18)/p+1/fC16H17N2O5S/h18H,17H2/q+1 90109942E5DD3FAF