Nc1nc(N)c2c(n1)NCC(=O)N2 mol8133 0_1 Nc1nc(N)c2c([nH+]1)NCC(=O)N2 mol8133 1_1 Nc1nc([NH3+])nc2c1NC(=O)CN2 mol8133 1_2 Nc1nc(N)c2c(n1)[NH2+]CC(=O)N2 mol8133 1_3 Nc1nc([NH3+])c2c(n1)NCC(=O)N2 mol8133 1_4 Nc1nc2c(c(N)[nH+]1)NC(=O)CN2 mol8133 1_5