Nc1nn[nH]c1C(=O)O    mol25311    0_1
[NH3+]c1nn[nH]c1C(=O)[O-]    mol25311    0_2
Nc1n[nH+][nH]c1C(=O)[O-]    mol25311    0_3
Nc1[nH+]n[nH]c1C(=O)[O-]    mol25311    0_4
Nc1nn[nH]c1C(=O)[O-]    mol25311    -1_1
Nc1nn[n-]c1C(=O)O    mol25311    -1_2
Nc1nn[n-]c1C(=O)[O-]    mol25311    -2_1