pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.31	Datawarrior	0	-1	COCC1=C(C(=O)O)CC1	COCC1=C(C(=O)[O-])CC1	mol12937	COCC1=C(C(=O)O)CC1
4.3099999	OCHEM	0	-1	COCC1=C(C(=O)O)CC1	COCC1=C(C(=O)[O-])CC1	mol12937	COCC1=C(C(=O)O)CC1
4.30999994277954	QSARToolbox	0	-1	COCC1=C(C(=O)O)CC1	COCC1=C(C(=O)[O-])CC1	mol12937	COCC1=C(C(=O)O)CC1