Nc1cc(N)c2ccccc2n1    mol4393    0_1
Nc1cc([NH3+])nc2ccccc12    mol4393    1_1
Nc1cc([NH3+])c2ccccc2n1    mol4393    1_2
Nc1cc(N)c2ccccc2[nH+]1    mol4393    1_3