pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.9	Datawarrior	0	-1	O=CNOC(=O)/C=C/c1ccccc1	O=C[N-]OC(=O)/C=C/c1ccccc1	mol13303	O=CNOC(=O)/C=C/c1ccccc1
5.90000009536743	QSARToolbox	0	-1	O=CNOC(=O)/C=C/c1ccccc1	O=C[N-]OC(=O)/C=C/c1ccccc1	mol13303	O=CNOC(=O)/C=C/c1ccccc1