pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.75	IUPAC digitized pKa	0	-1	O=C(O)[C@@H]1CCOC1=O	O=C([O-])[C@@H]1CCOC1=O	mol9317	O=C(O)C1CCOC1=O