pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.05	OCHEM	0	-1	O=C(O)Cc1ccccc1Br	O=C([O-])Cc1ccccc1Br	mol1241	O=C(O)Cc1ccccc1Br
4.5	QSARToolbox	0	-1	O=C(O)Cc1ccccc1Br	O=C([O-])Cc1ccccc1Br	mol1241	O=C(O)Cc1ccccc1Br