pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.29	AttenGpKa training set	1	0	C[n+]1c[nH]nc1[N+](=O)[O-]	C[n+]1c[n-]nc1[N+](=O)[O-]	mol25312	C[n+]1c[nH]nc1[N+](=O)[O-]