pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.17	IUPAC digitized pKa	1	0	CCCC[NH+]=c1ncccn1C,CCCCN=c1[nH+]cccn1C	CCCCN=c1ncccn1C	mol7208	CCCCN=c1ncccn1C