pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.79	OCHEM	0	-1	CC(C)(C)C(C)(C)C(=O)O	CC(C)(C)C(C)(C)C(=O)[O-]	mol32971	CC(C)(C)C(C)(C)C(=O)O
4.78999996185303	QSARToolbox	0	-1	CC(C)(C)C(C)(C)C(=O)O	CC(C)(C)C(C)(C)C(=O)[O-]	mol32971	CC(C)(C)C(C)(C)C(=O)O