pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.8	IUPAC digitized pKa	0	-1	C[C@@H](CCCC(=O)O)c1ccccc1	C[C@@H](CCCC(=O)[O-])c1ccccc1	mol11675	CC(CCCC(=O)O)c1ccccc1
4.80000019073486	QSARToolbox	0	-1	C[C@@H](CCCC(=O)O)c1ccccc1	C[C@@H](CCCC(=O)[O-])c1ccccc1	mol11675	CC(CCCC(=O)O)c1ccccc1