pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.59	IUPAC digitized pKa	0	-1	CCCOP(=O)(O)OCCC	CCCOP(=O)([O-])OCCC	mol9838	CCCOP(=O)(O)OCCC
0.870000004768372	QSARToolbox	0	-1	CCCOP(=O)(O)OCCC	CCCOP(=O)([O-])OCCC	mol9838	CCCOP(=O)(O)OCCC