Nc1ccnc(N)n1    mol4124    0_1
Nc1ccnc(N)[nH+]1    mol4124    1_1
Nc1nccc([NH3+])n1    mol4124    1_2
Nc1cc[nH+]c(N)n1    mol4124    1_3
Nc1ccnc([NH3+])n1    mol4124    1_4
Nc1cc[nH+]c(N)[nH+]1    mol4124    2_1
Nc1nc([NH3+])cc[nH+]1    mol4124    2_2
[NH3+]c1ccnc([NH3+])n1    mol4124    2_3
Nc1cc[nH+]c([NH3+])n1    mol4124    2_4
Nc1nccc([NH3+])[nH+]1    mol4124    2_5
Nc1ccnc([NH3+])[nH+]1    mol4124    2_6