NNc1nc(=O)cn[nH]1    mol7606    0_1
NNc1nc(=O)c[nH+][nH]1    mol7606    1_1
N[NH2+]c1nc(=O)cn[nH]1    mol7606    1_2
[NH3+]Nc1nc(=O)cn[nH]1    mol7606    1_3
NNc1[nH]ncc(=O)[nH+]1    mol7606    1_4
NNc1nc(=O)cn[n-]1    mol7606    -1_1