pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.71	OCHEM	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O
4.725	OCHEM	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O
4.71000003814697	QSARToolbox	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O
4.69999980926514	QSARToolbox	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O
4.63000011444092	QSARToolbox	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O
4.75	QSARToolbox	0	-1	CCCC=CC(=O)O	CCCC=CC(=O)[O-]	mol32548	CCCC=CC(=O)O