pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
5.28	AttenGpKa training set	0	-1	COC(=O)CN[N+](=O)[O-]	COC(=O)C[N-][N+](=O)[O-]	mol27850	COC(=O)CN[N+](=O)[O-]