pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.74000000953674	QSARToolbox	5	4	C1C[NH2+]CC[NH2+]CC[NH2+]CC[NH2+]CC[NH2+]1	C1C[NH2+]CC[NH2+]CC[NH2+]CC[NH2+]CCN1	mol33781	C1CNCCNCCNCCNCCN1