InChI=1/C13H13BrN4O3S/c1-6-11(22-13(15)17-6)12(20)18-16-5-7-3-8(14)10(19)9(4-7)21-2/h3-5,19H,1-2H3,(H2,15,17)(H,18,20)/b16-5-/f/h18H,15H2 3E6999B5DB373135