pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.06	IUPAC digitized pKa	1	0	CC(=O)N1CCNC1=[NH2+]	CC(=O)N1CCNC1=N	mol6703	CC(=O)N1CCNC1=N