pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	Datawarrior	0	-1	O=c1ccc(O)c(Br)cc1	O=c1ccc([O-])c(Br)cc1	mol12927	O=c1ccc(O)c(Br)cc1
4.9000001	OCHEM	0	-1	O=c1ccc(O)c(Br)cc1	O=c1ccc([O-])c(Br)cc1	mol12927	O=c1ccc(O)c(Br)cc1