pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.98	OCHEM	0	-1	CNC(=O)C=CC(=O)O	CNC(=O)C=CC(=O)[O-]	mol32396	CNC(=O)C=CC(=O)O