pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.5	OCHEM	0	-1	Cc1ccccc1C=CC(=O)O	Cc1ccccc1C=CC(=O)[O-]	mol32269	Cc1ccccc1C=CC(=O)O