[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a nitrogen oxoanion formed by loss of a proton from nitric acid. Principal species present at pH 7.3. It is a nitrogen oxoanion, a member of reactive nitrogen species and a monovalent inorganic anion. It is a conjugate base of a nitric acid."}, {"from": "gpt", "value": "[N+1][=Branch1][C][=O][Branch1][C][O-1][O-1]"}]