C[n+]1ccc(/C=N/[O-])[nH]1    mol31505    0_1
C[n+]1ccc(/C=N/O)[n-]1    mol31505    0_2
[CH2-][n+]1ccc(/C=N/O)[nH]1    mol31505    0_3
C[n+]1ccc(/C=N/O)[nH]1    mol31505    1_1