pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.26	IUPAC digitized pKa	0	-1	O=C(O)c1ccc(=O)oc1	O=C([O-])c1ccc(=O)oc1	mol9525	O=C(O)c1ccc(=O)oc1
3.25999999046326	QSARToolbox	0	-1	O=C(O)c1ccc(=O)oc1	O=C([O-])c1ccc(=O)oc1	mol9525	O=C(O)c1ccc(=O)oc1