pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.35	IUPAC digitized pKa	1	0	C[C@H]1C[NH2+]NC1=O	C[C@H]1CNNC1=O	mol6925	CC1CNNC1=O