pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.02	IUPAC digitized pKa	0	-1	CC(C)S[P@](C)(=O)O	[CH2-][P@@](=O)(O)SC(C)C	mol9290	CC(C)SP(C)(=O)O
2.01999998092651	QSARToolbox	0	-1	CC(C)S[P@](C)(=O)O	[CH2-][P@@](=O)(O)SC(C)C	mol9290	CC(C)SP(C)(=O)O