pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.50999999046326	QSARToolbox	0	-1	CCCC(CC)(CC(=O)O)CC(=O)O	CCCC(CC)(CC(=O)[O-])CC(=O)O	mol32976	CCCC(CC)(CC(=O)O)CC(=O)O
4.2	OCHEM	-1	-2	CCCC(CC)(CC(=O)[O-])CC(=O)O	CCCC(CC)(CC(=O)[O-])CC(=O)[O-]	mol32976	CCCC(CC)(CC(=O)O)CC(=O)O