[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][=Branch1][C][O][C][C][O][N]"}, {"from": "gpt", "value": "The molecule appears as a colorless liquid with a faint fishlike odor. Combustible but difficult to ignite. Corrosive to tissue. Combustion produces toxic oxides of nitrogen."}]