[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a synthetic substance that is used in explosives. Nitrite is a toxic compound known to cause methemoglobinemia. (L1137,  L199)"}, {"from": "gpt", "value": "[C][=C][Branch2][Ring1][=Branch1][C][=Branch1][=C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][N][N+1][=Branch1][C][=O][O-1][N+1][=Branch1][C][=O][O-1][N]"}]