pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.17	IUPAC digitized pKa	0	-1	O=C(O)CN(CC(=O)O)Cc1ccco1,O=C([O-])C[NH+](CC(=O)O)Cc1ccco1	O=C([O-])C[NH+](CC(=O)[O-])Cc1ccco1	mol11054	O=C(O)CN(CC(=O)O)Cc1ccco1
8.41	IUPAC digitized pKa	-1	-2	O=C([O-])C[NH+](CC(=O)[O-])Cc1ccco1	O=C([O-])CN(CC(=O)[O-])Cc1ccco1	mol11054	O=C(O)CN(CC(=O)O)Cc1ccco1