O=C([O-])Cc1ccccc1[NH2+]c1c(Cl)cccc1Cl mol33 0_1 O=C(O)Cc1ccccc1Nc1c(Cl)cccc1Cl mol33 0_2 O=C(O)Cc1ccccc1[NH2+]c1c(Cl)cccc1Cl mol33 1_1 O=C([O-])Cc1ccccc1Nc1c(Cl)cccc1Cl mol33 -1_1