pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.59	IUPAC digitized pKa	0	-1	C#CCCCC(=O)O	C#CCCCC(=O)[O-]	mol9556	C#CCCCC(=O)O
4.6	Datawarrior	0	-1	C#CCCCC(=O)O	C#CCCCC(=O)[O-]	mol9556	C#CCCCC(=O)O
4.5999999	OCHEM	0	-1	C#CCCCC(=O)O	C#CCCCC(=O)[O-]	mol9556	C#CCCCC(=O)O
4.59999990463257	QSARToolbox	0	-1	C#CCCCC(=O)O	C#CCCCC(=O)[O-]	mol9556	C#CCCCC(=O)O