pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.7	IUPAC digitized pKa	0	-1	O=C([O-])CNC(=O)[C@H](Cc1c[nH+]c[nH]1)NC(=O)CNC(=O)OCc1ccccc1	O=C([O-])CNC(=O)[C@H](Cc1cnc[nH]1)NC(=O)CNC(=O)OCc1ccccc1	mol8532	O=C(O)CNC(=O)[C@H](Cc1cnc[nH]1)NC(=O)CNC(=O)OCc1ccccc1