pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.75	IUPAC digitized pKa	1	0	C1CNC[NH2+]C1	C1CNCNC1	mol7458	C1CNCNC1
8.84	Datawarrior	1	0	C1CNC[NH2+]C1	C1CNCNC1	mol7458	C1CNCNC1
8.8400002	OCHEM	1	0	C1CNC[NH2+]C1	C1CNCNC1	mol7458	C1CNCNC1
4.71	Datawarrior	2	1	C1C[NH2+]C[NH2+]C1	C1CNC[NH2+]C1	mol7458	C1CNCNC1