pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.6	Hunt	0	-1	NC1=Nc2cccc3cccc(c23)N1	NC1=Nc2cccc3cccc(c23)[N-]1	mol1978	NC1=Nc2cccc3cccc(c23)N1