O=C([O-])Cc1sc(-c2ccccc2)[nH+]c1-c1ccc(Cl)cc1 mol21772 0_1 O=C(O)Cc1sc(-c2ccccc2)nc1-c1ccc(Cl)cc1 mol21772 0_2 O=C([O-])Cc1sc(-c2ccccc2)nc1-c1ccc(Cl)cc1 mol21772 -1_1