pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.52	Organic Oxygen Acids and Nitrogen Bases	0	-1	O=C(O)CCCCl	O=C([O-])CCCCl	mol1752	O=C(O)CCCCl
4.5	OCHEM	0	-1	O=C(O)CCCCl	O=C([O-])CCCCl	mol1752	O=C(O)CCCCl
4.51999998092651	QSARToolbox	0	-1	O=C(O)CCCCl	O=C([O-])CCCCl	mol1752	O=C(O)CCCCl