O=C(O)c1cc([N+](=O)[O-])cc[n+]1[O-]    mol9629    0_1
O=C([O-])c1cc([N+](=O)[O-])cc[n+]1O    mol9629    0_2
O=C([O-])c1cc([N+](=O)[O-])cc[n+]1[O-]    mol9629    -1_1