pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.72	OCHEM	0	-1	C=CCCCC(=O)O	C=CCCCC(=O)[O-]	mol22213	C=CCCCC(=O)O
4.71999979019165	QSARToolbox	0	-1	C=CCCCC(=O)O	C=CCCCC(=O)[O-]	mol22213	C=CCCCC(=O)O