pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.44	IUPAC digitized pKa	1	0	[NH3+]CCNc1ccccc1	NCCNc1ccccc1	mol3108	NCCNc1ccccc1
6.59	IUPAC digitized pKa	2	1	[NH3+]CC[NH2+]c1ccccc1	[NH3+]CCNc1ccccc1	mol3108	NCCNc1ccccc1