pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.42	IUPAC digitized pKa	1	0	C=CC[NH+]=c1ncccn1CCC,C=CCN=c1[nH+]cccn1CCC	C=CCN=c1ncccn1CCC	mol6994	C=CCN=c1ncccn1CCC