pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
13.14	IUPAC digitized pKa	1	0	CNc1ccn(C)c(=[NH2+])n1,C[NH2+]c1ccn(C)c(=N)n1,CNc1ccn(C)c(=N)[nH+]1	CNc1ccn(C)c(=N)n1	mol7345	CNc1ccn(C)c(=N)n1