pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
13.6	Datawarrior	1	0	CNC(=[NH2+])N(C)C	CNC(=N)N(C)C	mol16000	CNC(=N)N(C)C
13.9	OCHEM	1	0	CNC(=[NH2+])N(C)C	CNC(=N)N(C)C	mol16000	CNC(=N)N(C)C