Nc1[nH+]ccnc1C(=O)[O-]    mol3975    0_1
[NH3+]c1nccnc1C(=O)[O-]    mol3975    0_2
Nc1ncc[nH+]c1C(=O)[O-]    mol3975    0_3
Nc1nccnc1C(=O)O    mol3975    0_4
Nc1nccnc1C(=O)[O-]    mol3975    -1_1