Oc1cc2ccccc2cc1C1=NCCN1    mol3931    0_1
[O-]c1cc2ccccc2cc1C1=[NH+]CCN1    mol3931    0_2
Oc1cc2ccccc2cc1C1=[NH+]CCN1    mol3931    1_1
[O-]c1cc2ccccc2cc1C1=NCCN1    mol3931    -1_1