pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.8	Datawarrior	0	-1	CCC(=O)NOC(=O)/C=C/c1ccccc1	CCC(=O)[N-]OC(=O)/C=C/c1ccccc1	mol14472	CCC(=O)NOC(=O)/C=C/c1ccccc1
6.80000019073486	QSARToolbox	0	-1	CCC(=O)NOC(=O)/C=C/c1ccccc1	CCC(=O)[N-]OC(=O)/C=C/c1ccccc1	mol14472	CCC(=O)NOC(=O)/C=C/c1ccccc1