pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.34	IUPAC digitized pKa	1	0	CC(=O)NC1=[NH+]CCCN1	CC(=O)NC1=NCCCN1	mol6984	CC(=O)NC1=NCCCN1