NNc1ncnc2nccnc12    mol4810    0_1
[NH3+]Nc1ncnc2nccnc12    mol4810    1_1
NNc1ncnc2ncc[nH+]c12    mol4810    1_2
N[NH2+]c1ncnc2nccnc12    mol4810    1_3
NNc1[nH+]cnc2nccnc12    mol4810    1_4
NNc1ncnc2[nH+]ccnc12    mol4810    1_5
NNc1nc[nH+]c2nccnc12    mol4810    1_6