pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.62	IUPAC digitized pKa	1	0	O=NC[NH2+]c1ccncn1,O=NCNc1cc[nH+]cn1,O=NCNc1ccnc[nH+]1	O=NCNc1ccncn1	mol7512	O=NCNc1ccncn1