pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.7849998	OCHEM	0	-1	CCCC=C(C)C(=O)O	CCCC=C(C)C(=O)[O-]	mol32423	CCCC=C(C)C(=O)O
5.13	OCHEM	0	-1	CCCC=C(C)C(=O)O	CCCC=C(C)C(=O)[O-]	mol32423	CCCC=C(C)C(=O)O
5.13000011444092	QSARToolbox	0	-1	CCCC=C(C)C(=O)O	CCCC=C(C)C(=O)[O-]	mol32423	CCCC=C(C)C(=O)O