pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.04999995231628	QSARToolbox	-1	-2	O=C([O-])c1ccc(C(=O)O)s1	O=C([O-])c1ccc(C(=O)[O-])s1	mol33911	O=C(O)c1ccc(C(=O)O)s1