InChI=1/C13H16N4O4S/c1-2-3-7-11(18)14-13(22)16-15-12(19)9-5-4-6-10(8-9)17(20)21/h4-6,8H,2-3,7H2,1H3,(H,15,19)(H2,14,16,18,22)/f/h14-16H B1E96D1347D401B0