pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.23000001907349	QSARToolbox	0	-1	CCP(=O)(CC)CCC(=O)O	CCP(=O)(CC)CCC(=O)[O-]	mol34274	CCP(=O)(CC)CCC(=O)O