pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.52999997138977	QSARToolbox	0	-1	C/C(C(=O)O)=C(/C)C(=O)O	C/C(C(=O)[O-])=C(/C)C(=O)O	mol35307	C/C(C(=O)O)=C(/C)C(=O)O