pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.97000002861023	QSARToolbox	0	-1	COc1cccc(/C=C/C(=O)C(=O)O)c1	COc1cccc(/C=C/C(=O)C(=O)[O-])c1	mol34842	COc1cccc(/C=C/C(=O)C(=O)O)c1