pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.89	IUPAC digitized pKa	0	-1	CCCCOP(=O)(O)O	CCCCOP(=O)([O-])O	mol9251	CCCCOP(=O)(O)O
1.62000000476837	QSARToolbox	0	-1	CCCCOP(=O)(O)O	CCCCOP(=O)([O-])O	mol9251	CCCCOP(=O)(O)O
1.8	AttenGpKa training set	0	-1	CCCCOP(=O)(O)O	CCCCOP(=O)([O-])O	mol9251	CCCCOP(=O)(O)O
6.84	IUPAC digitized pKa	-1	-2	CCCCOP(=O)([O-])O	CCCCOP(=O)([O-])[O-]	mol9251	CCCCOP(=O)(O)O