pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.77	IUPAC digitized pKa	0	-1	CC1=C(O)C(=O)OC1	CC1=C([O-])C(=O)OC1	mol9310	CC1=C(O)C(=O)OC1