pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.13	IUPAC digitized pKa	0	-1	Oc1ncnc2c1NCCN2	[O-]c1ncnc2c1NCCN2	mol4839	Oc1ncnc2c1NCCN2
3.86	IUPAC digitized pKa	1	0	Oc1nc[nH+]c2c1NCCN2,Oc1ncnc2c1NCC[NH2+]2,Oc1ncnc2c1[NH2+]CCN2,Oc1[nH+]cnc2c1NCCN2	Oc1ncnc2c1NCCN2	mol4839	Oc1ncnc2c1NCCN2