pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.59	IUPAC digitized pKa	0	-1	CC#CCC(=O)O	CC#CCC(=O)[O-]	mol9308	CC#CCC(=O)O
3.6	Datawarrior	0	-1	CC#CCC(=O)O	CC#CCC(=O)[O-]	mol9308	CC#CCC(=O)O
3.5999999	OCHEM	0	-1	CC#CCC(=O)O	CC#CCC(=O)[O-]	mol9308	CC#CCC(=O)O
3.59999990463257	QSARToolbox	0	-1	CC#CCC(=O)O	CC#CCC(=O)[O-]	mol9308	CC#CCC(=O)O