pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-4.9	AttenGpKa training set	1	0	Brc1cc(Br)c(Br)[nH+]c1Br	Brc1cc(Br)c(Br)nc1Br	mol6558	Brc1cc(Br)c(Br)nc1Br