pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.13	IUPAC digitized pKa	1	0	CCCCCC[NH2+]c1ncccn1,CCCCCCNc1nccc[nH+]1	CCCCCCNc1ncccn1	mol7459	CCCCCCNc1ncccn1