NNc1ccc([N+](=O)[O-])cc1[N+](=O)[O-]    mol33748    0_1
N[NH2+]c1ccc([N+](=O)[O-])cc1[N+](=O)[O-]    mol33748    1_1
[NH3+]Nc1ccc([N+](=O)[O-])cc1[N+](=O)[O-]    mol33748    1_2