pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-0.75	IUPAC digitized pKa	1	0	Cn1c([N+](=O)[O-])c[nH+]c1Br	Cn1c([N+](=O)[O-])cnc1Br	mol6650	Cn1c([N+](=O)[O-])cnc1Br
-0.74	AttenGpKa training set	1	0	Cn1c([N+](=O)[O-])c[nH+]c1Br	Cn1c([N+](=O)[O-])cnc1Br	mol6650	Cn1c([N+](=O)[O-])cnc1Br