pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.0	IUPAC digitized pKa	1	0	[NH3+]c1nccnn1,Nc1ncc[nH+]n1,Nc1nccn[nH+]1,Nc1nncc[nH+]1	Nc1nccnn1	mol4256	Nc1nccnn1
4.1	IUPAC digitized pKa	1	0	[NH3+]c1nccnn1,Nc1ncc[nH+]n1,Nc1nccn[nH+]1,Nc1nncc[nH+]1	Nc1nccnn1	mol4256	Nc1nccnn1
3.09	OCHEM	1	0	[NH3+]c1nccnn1,Nc1ncc[nH+]n1,Nc1nccn[nH+]1,Nc1nncc[nH+]1	Nc1nccnn1	mol4256	Nc1nccnn1