pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.53	Datawarrior	0	-1	C/C=C/C=C/C(=O)O	C/C=C/C=C/C(=O)[O-]	mol1931	C/C=C/C=C/C(=O)O
4.77	OCHEM	0	-1	C/C=C/C=C/C(=O)O	C/C=C/C=C/C(=O)[O-]	mol1931	C/C=C/C=C/C(=O)O
4.5	OCHEM	0	-1	C/C=C/C=C/C(=O)O	C/C=C/C=C/C(=O)[O-]	mol1931	C/C=C/C=C/C(=O)O
4.53000020980835	QSARToolbox	0	-1	C/C=C/C=C/C(=O)O	C/C=C/C=C/C(=O)[O-]	mol1931	C/C=C/C=C/C(=O)O
4.631666667	AttenGpKa training set	0	-1	C/C=C/C=C/C(=O)O	C/C=C/C=C/C(=O)[O-]	mol1931	C/C=C/C=C/C(=O)O