O=C([O-])c1[nH+]c(-c2ccccc2)oc1-c1ccccc1 mol1602 0_1 O=C(O)c1nc(-c2ccccc2)oc1-c1ccccc1 mol1602 0_2 O=C([O-])c1nc(-c2ccccc2)oc1-c1ccccc1 mol1602 -1_1