pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.01	Datawarrior	0	-1	CC(=O)c1ccc(O)c(=O)cc1	CC(=O)c1ccc([O-])c(=O)cc1	mol12542	CC(=O)c1ccc(O)c(=O)cc1
5.0100002	OCHEM	0	-1	CC(=O)c1ccc(O)c(=O)cc1	CC(=O)c1ccc([O-])c(=O)cc1	mol12542	CC(=O)c1ccc(O)c(=O)cc1