pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.94000005722046	QSARToolbox	0	-1	CCCC[P@@](=O)(O)OCC	CCCC[P@@](=O)([O-])OCC	mol34149	CCCCP(=O)(O)OCC