pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.6	IUPAC digitized pKa	0	-1	NC(=[NH2+])Nc1ccc(C(=O)[O-])cc1	N=C(N)Nc1ccc(C(=O)[O-])cc1	mol6140	N=C(N)Nc1ccc(C(=O)O)cc1