pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	IUPAC digitized pKa	1	0	N[NH2+]c1ccc(I)cc1,[NH3+]Nc1ccc(I)cc1	NNc1ccc(I)cc1	mol8855	NNc1ccc(I)cc1