[{"from": "human", "value": "Could you provide a description of this molecule? [C][N][Branch1][#Branch1][C][C][=Branch1][C][=O][O][N][=O]"}, {"from": "gpt", "value": "The molecule is a pale yellow, crystalline solid nitrosamine that decomposes when exposed to light and emits toxic fumes of nitrogen oxides when heated to decomposition. N-Nitrososarcosine is used in laboratory research to induce tumors in experimental animals. This substance may be formed during the cooking of foods that contain sodium nitrite as a preservative, including meat, fish and cheese. Exposure to N-Nitrososarcosine irritates the skin and eyes. This substance is reasonably anticipated to be a human carcinogen. (NCI05)"}]