pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.2	IUPAC digitized pKa	1	0	c1cnc2[nH+]ccnc2c1,c1c[nH+]c2nccnc2c1,c1cnc2ncc[nH+]c2c1	c1cnc2nccnc2c1	mol4689	c1cnc2nccnc2c1
1.20000004768372	QSARToolbox	1	0	c1cnc2[nH+]ccnc2c1,c1c[nH+]c2nccnc2c1,c1cnc2ncc[nH+]c2c1	c1cnc2nccnc2c1	mol4689	c1cnc2nccnc2c1