pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.5	QSARToolbox	0	-1	O=[Se@](O)c1ccc(Br)cc1	O=[Se@]([O-])c1ccc(Br)cc1	mol9876	O=[Se](O)c1ccc(Br)cc1