pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.52	OCHEM	0	-1	O=C(O)[C@@H](O)CO	O=C([O-])[C@@H](O)CO	mol2237	O=C(O)[C@@H](O)CO
3.55	OCHEM	0	-1	O=C(O)[C@@H](O)CO	O=C([O-])[C@@H](O)CO	mol2237	O=C(O)[C@@H](O)CO