InChI=1/C16H20N2O5S/c1-2-3-12-23-13-4-6-14(7-5-13)24(21,22)16(15(19)18-20)8-10-17-11-9-16/h4-7,17,20H,8-12H2,1H3,(H,18,19)/p+1/fC16H21N2O5S/h17-18H/q+1 AF8ABDD19982DF2A