pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.82	IUPAC digitized pKa	0	-1	O=C([O-])[C@]1(O)NC=[NH+]c2ccccc21	O=C([O-])[C@]1(O)NC=Nc2ccccc21	mol7856	O=C(O)C1(O)NC=Nc2ccccc21