pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.02	IUPAC digitized pKa	0	-1	C[C@H]1C[C@H]1C(=O)O	C[C@H]1C[C@H]1C(=O)[O-]	mol9320	C[C@H]1C[C@H]1C(=O)O
5.03000020980835	QSARToolbox	0	-1	C[C@H]1C[C@H]1C(=O)O	C[C@H]1C[C@H]1C(=O)[O-]	mol9320	C[C@H]1C[C@H]1C(=O)O