Cn1c(=O)c([O-])nc2nc[nH+]cc21    mol10114    0_1
Cn1c(=O)c([O-])nc2[nH+]cncc21    mol10114    0_2
Cn1c(=O)c(O)nc2ncncc21    mol10114    0_3
Cn1c(=O)c([O-])nc2ncncc21    mol10114    -1_1