pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.9000001	OCHEM	0	-1	O=CNOC(=O)C=Cc1ccccc1	O=C[N-]OC(=O)C=Cc1ccccc1	mol32291	O=CNOC(=O)C=Cc1ccccc1