Nc1ccc([N+](=O)[O-])cc1N    mol5987    0_1
Nc1ccc([N+](=O)[O-])cc1[NH3+]    mol5987    1_1
Nc1cc([N+](=O)[O-])ccc1[NH3+]    mol5987    1_2
[NH3+]c1ccc([N+](=O)[O-])cc1[NH3+]    mol5987    2_1