Cc1nc(/C=N\[O-])o[nH+]1    mol20097    0_1
Cc1noc(/C=N\O)n1    mol20097    0_2
Cc1noc(/C=N\[O-])[nH+]1    mol20097    0_3
Cc1noc(/C=N\[O-])n1    mol20097    -1_1