Nc1ncnc2nc(Cl)cnc12    mol8041    0_1
[NH3+]c1ncnc2nc(Cl)cnc12    mol8041    1_1
Nc1ncnc2nc(Cl)c[nH+]c12    mol8041    1_2
Nc1[nH+]cnc2nc(Cl)cnc12    mol8041    1_3
Nc1nc[nH+]c2nc(Cl)cnc12    mol8041    1_4
Nc1ncnc2[nH+]c(Cl)cnc12    mol8041    1_5