pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.55	AttenGpKa training set	0	-1	O=C1C=C/C(=N\O)C=C1Br	O=C1C=C/C(=N\[O-])C=C1Br	mol31618	O=C1C=C/C(=N\O)C=C1Br