pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.9	IUPAC digitized pKa	1	0	C[NH+]1CCN(C(=O)c2ccc(N)cc2)CC1	CN1CCN(C(=O)c2ccc(N)cc2)CC1	mol11803	CN1CCN(C(=O)c2ccc(N)cc2)CC1