pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.34	IUPAC digitized pKa	0	-1	Cn1cnc(O)c2ncnc1-2	Cn1cnc([O-])c2ncnc1-2	mol8308	Cn1cnc(O)c2ncnc1-2
2.61	IUPAC digitized pKa	1	0	Cn1cnc(O)c2[nH+]cnc1-2,Cn1cnc(O)c2nc[nH+]c1-2	Cn1cnc(O)c2ncnc1-2	mol8308	Cn1cnc(O)c2ncnc1-2