[O-]c1ccccc1/C(=[NH+]/O)c1ccccc1    mol31623    0_1
O/N=C(\c1ccccc1)c1ccccc1O    mol31623    0_2
[O-]c1ccccc1/C(=N/O)c1ccccc1    mol31623    -1_1
[O-]/N=C(\c1ccccc1)c1ccccc1O    mol31623    -1_2