pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
16.9	IUPAC digitized pKa	-1	-2	Cc1cccc2[nH]cc(C[C@@H](N)C(=O)[O-])c12	Cc1cccc2[n-]cc(C[C@@H](N)C(=O)[O-])c12	mol11723	Cc1cccc2[nH]cc(CC(N)C(=O)O)c12