Nc1cnnn1-c1ccccc1 mol25397 0_1 Nc1cn[nH+]n1-c1ccccc1 mol25397 1_1 Nc1c[nH+]nn1-c1ccccc1 mol25397 1_2 [NH3+]c1cnnn1-c1ccccc1 mol25397 1_3