pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.05000019073486	QSARToolbox	0	-1	C/C(O)=C/C(=O)O	C/C(O)=C/C(=O)[O-]	mol22197	C/C(O)=C/C(=O)O
4.05	AttenGpKa training set	0	-1	C/C(O)=C/C(=O)O	C/C(O)=C/C(=O)[O-]	mol22197	C/C(O)=C/C(=O)O
13.18	AttenGpKa training set	-1	-2	C/C(O)=C/C(=O)[O-]	C/C([O-])=C/C(=O)[O-]	mol22197	C/C(O)=C/C(=O)O