pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.14	IUPAC digitized pKa	0	-1	O=C(O)COC(=O)c1ccc(O)cc1	O=C([O-])COC(=O)c1ccc(O)cc1	mol10855	O=C(O)COC(=O)c1ccc(O)cc1