pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.3	IUPAC digitized pKa	1	0	Cc1[nH][nH+]c(C)c1Br	Cc1n[nH]c(C)c1Br	mol6806	Cc1n[nH]c(C)c1Br