Oc1nc2ccccc2[nH]1    mol4515    0_1
Oc1[nH]c2ccccc2[nH+]1    mol4515    1_1
[O-]c1nc2ccccc2[nH]1    mol4515    -1_1
Oc1nc2ccccc2[n-]1    mol4515    -1_2