O=C(c1ccc(Cl)cc1)n1c(-c2ccccc2[N+](=O)[O-])nc2ccccc21    mol17577    0_1
O=C(c1ccc(Cl)cc1)n1c(-c2ccccc2[N+](=O)[O-])[nH+]c2ccccc21    mol17577    1_1