pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.75	IUPAC digitized pKa	0	-1	CCC/C=C/C(=O)O	CCC/C=C/C(=O)[O-]	mol9575	CCC/C=C/C(=O)O
4.71	Datawarrior	0	-1	CCC/C=C/C(=O)O	CCC/C=C/C(=O)[O-]	mol9575	CCC/C=C/C(=O)O
4.74	OCHEM	0	-1	CCC/C=C/C(=O)O	CCC/C=C/C(=O)[O-]	mol9575	CCC/C=C/C(=O)O
4.7	AttenGpKa training set	0	-1	CCC/C=C/C(=O)O	CCC/C=C/C(=O)[O-]	mol9575	CCC/C=C/C(=O)O