pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.98	AttenGpKa training set	-1	-2	O=C([O-])C(=N\O)/C(=N/O)C(=O)O	O=C([O-])C(=N\O)/C(=N/O)C(=O)[O-]	mol22389	O=C(O)C(=N\O)/C(=N/O)C(=O)O