pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
10.09	IUPAC digitized pKa	1	0	NCCC[NH2+]Cc1ccccn1,[NH3+]CCCNCc1ccccn1	NCCCNCc1ccccn1	mol6382	NCCCNCc1ccccn1
7.5	IUPAC digitized pKa	2	1	[NH3+]CCC[NH2+]Cc1ccccn1	NCCC[NH2+]Cc1ccccn1,[NH3+]CCCNCc1ccccn1	mol6382	NCCCNCc1ccccn1
2.1	IUPAC digitized pKa	3	2	[NH3+]CCC[NH2+]Cc1cccc[nH+]1	[NH3+]CCC[NH2+]Cc1ccccn1	mol6382	NCCCNCc1ccccn1