Nc1ncncc1[N+](=O)[O-]    mol7108    0_1
Nc1nc[nH+]cc1[N+](=O)[O-]    mol7108    1_1
Nc1[nH+]cncc1[N+](=O)[O-]    mol7108    1_2
[NH3+]c1ncncc1[N+](=O)[O-]    mol7108    1_3