pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.03	IUPAC digitized pKa	1	0	CCCCC[NH2+]c1ncccn1,CCCCCNc1nccc[nH+]1	CCCCCNc1ncccn1	mol1359	CCCCCNc1ncccn1