pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.5	QSARToolbox	0	-1	O=C1C=CC(=O)C(CC(=O)O)=C1	O=C1C=CC(=O)C(CC(=O)[O-])=C1	mol34014	O=C1C=CC(=O)C(CC(=O)O)=C1