Nc1cc(Br)cc([N+](=O)[O-])c1N    mol35518    0_1
Nc1c([NH3+])cc(Br)cc1[N+](=O)[O-]    mol35518    1_1
Nc1cc(Br)cc([N+](=O)[O-])c1[NH3+]    mol35518    1_2