InChI=1/C13H18N4O3S/c14-8-1-3-9(4-2-8)17-21(19,20)10-5-6-11-12(7-10)16-13(18)15-11/h5-9,17H,1-4,14H2,(H2,15,16,18)/p+1/fC13H19N4O3S/h14-16H/q+1 8BBB3E74A6E95863