pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.26999998092651	QSARToolbox	0	-1	[O-][N+](O)=C(CO)CO	[O-][N+]([O-])=C(CO)CO	mol27844	[O-][N+](O)=C(CO)CO
3.6	AttenGpKa training set	0	-1	[O-][N+](O)=C(CO)CO	[O-][N+]([O-])=C(CO)CO	mol27844	[O-][N+](O)=C(CO)CO