Nc1ncc2nn[nH]c2n1    mol8337    0_1
Nc1nc2[nH]nnc2c[nH+]1    mol8337    1_1
Nc1ncc2nn[nH]c2[nH+]1    mol8337    1_2
[NH3+]c1ncc2nn[nH]c2n1    mol8337    1_3
Nc1ncc2n[nH+][nH]c2n1    mol8337    1_4
Nc1ncc2[nH+]n[nH]c2n1    mol8337    1_5
Nc1ncc2nn[n-]c2n1    mol8337    -1_1