pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.63	Organic Oxygen Acids and Nitrogen Bases	1	0	Brc1nccc[nH+]1	Brc1ncccn1	mol7145	Brc1ncccn1
-1.9	OCHEM	1	0	Brc1nccc[nH+]1	Brc1ncccn1	mol7145	Brc1ncccn1
-1.62999999523163	QSARToolbox	1	0	Brc1nccc[nH+]1	Brc1ncccn1	mol7145	Brc1ncccn1