O=C(O)c1cnc2ccccc2n1    mol10934    0_1
O=C([O-])c1cnc2ccccc2[nH+]1    mol10934    0_2
O=C([O-])c1c[nH+]c2ccccc2n1    mol10934    0_3
O=C([O-])c1cnc2ccccc2n1    mol10934    -1_1