NCc1cc(N)cc(Cl)c1    mol12967    0_1
Nc1cc(Cl)cc(C[NH3+])c1    mol12967    1_1
NCc1cc([NH3+])cc(Cl)c1    mol12967    1_2
[NH3+]Cc1cc([NH3+])cc(Cl)c1    mol12967    2_1