pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
13.9	OCHEM	0	-1	CNC(=N)NC	C[N-]C(=N)NC,CNC(=[N-])NC	mol27998	CNC(=N)NC
13.6	AttenGpKa training set	1	0	CNC(=[NH2+])NC	CNC(=N)NC	mol27998	CNC(=N)NC