pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.83	Datawarrior	0	-1	O=C(O)C1CC1	O=C([O-])C1CC1	mol15829	O=C(O)C1CC1
4.8299999	OCHEM	0	-1	O=C(O)C1CC1	O=C([O-])C1CC1	mol15829	O=C(O)C1CC1
4.82999992370606	QSARToolbox	0	-1	O=C(O)C1CC1	O=C([O-])C1CC1	mol15829	O=C(O)C1CC1