pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.69	IUPAC digitized pKa	1	0	CCCCC[NH+]1CCOCC1	CCCCCN1CCOCC1	mol1599	CCCCCN1CCOCC1