pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.62	OCHEM	0	-1	Brc1ccc(Cc2nn[nH]n2)cc1	Brc1ccc(Cc2nn[n-]n2)cc1	mol21256	Brc1ccc(Cc2nn[nH]n2)cc1