[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a nitrate of guanidine. It is a high energy fuel used in some gas generator and solid rocket propellant applications. Nitrite is a toxic compound known to cause methemoglobinemia. (L1137,  L1627)"}, {"from": "gpt", "value": "[C][=Branch1][C][=N][Branch1][C][N][N].[N+1][=Branch1][C][=O][Branch1][C][O][O-1]"}]