pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.602	IUPAC digitized pKa	0	-1	COc1ccc(S(=O)(=O)CC(=O)O)cc1	COc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11039	COc1ccc(S(=O)(=O)CC(=O)O)cc1
2.61999988555908	QSARToolbox	0	-1	COc1ccc(S(=O)(=O)CC(=O)O)cc1	COc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11039	COc1ccc(S(=O)(=O)CC(=O)O)cc1
2.59999990463257	QSARToolbox	0	-1	COc1ccc(S(=O)(=O)CC(=O)O)cc1	COc1ccc(S(=O)(=O)CC(=O)[O-])cc1	mol11039	COc1ccc(S(=O)(=O)CC(=O)O)cc1