[CH2-][n+]1[nH]ccc1/C=N/O    mol31504    0_1
C[n+]1[n-]ccc1/C=N/O    mol31504    0_2
C[n+]1[nH]ccc1/C=N/[O-]    mol31504    0_3
[CH2-][n+]1[nH]ccc1/C=N/[O-]    mol31504    -1_1
C[n+]1[n-]ccc1/C=N/[O-]    mol31504    -1_2
[CH2-][n+]1[n-]ccc1/C=N/O    mol31504    -1_3