pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.52	Datawarrior	0	-1	Cc1ccc(C(=O)C(=O)O)cc1	Cc1ccc(C(=O)C(=O)[O-])cc1	mol12550	Cc1ccc(C(=O)C(=O)O)cc1