pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.2	AttenGpKa training set	0	-1	O=[N+]([O-])CBr	O=[N+]([O-])[CH-]Br	mol27855	O=[N+]([O-])CBr