pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.39	IUPAC digitized pKa	0	-1	C=CC#CCC(=O)O	C=CC#CCC(=O)[O-]	mol9538	C=CC#CCC(=O)O
3.41	Datawarrior	0	-1	C=CC#CCC(=O)O	C=CC#CCC(=O)[O-]	mol9538	C=CC#CCC(=O)O
3.4100001	OCHEM	0	-1	C=CC#CCC(=O)O	C=CC#CCC(=O)[O-]	mol9538	C=CC#CCC(=O)O
3.41000008583069	QSARToolbox	0	-1	C=CC#CCC(=O)O	C=CC#CCC(=O)[O-]	mol9538	C=CC#CCC(=O)O