pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.55	IUPAC digitized pKa	0	-1	[NH3+]CCCCP(=O)([O-])O	[NH3+]CCCCP(=O)([O-])[O-]	mol5266	NCCCCP(=O)(O)O
7.55000019073486	QSARToolbox	0	-1	[NH3+]CCCCP(=O)([O-])O	[NH3+]CCCCP(=O)([O-])[O-]	mol5266	NCCCCP(=O)(O)O
2.55	IUPAC digitized pKa	1	0	[NH3+]CCCCP(=O)(O)O	[NH3+]CCCCP(=O)([O-])O	mol5266	NCCCCP(=O)(O)O
2.54999995231628	QSARToolbox	1	0	[NH3+]CCCCP(=O)(O)O	[NH3+]CCCCP(=O)([O-])O	mol5266	NCCCCP(=O)(O)O
10.9	IUPAC digitized pKa	-1	-2	[NH3+]CCCCP(=O)([O-])[O-]	NCCCCP(=O)([O-])[O-]	mol5266	NCCCCP(=O)(O)O