pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.65	IUPAC digitized pKa	0	-1	O=[S@@](O)CO	O=[S@@]([O-])CO	mol8905	O=S(O)CO
1.64999997615814	QSARToolbox	0	-1	O=[S@@](O)CO	O=[S@@]([O-])CO	mol8905	O=S(O)CO