[{"from": "human", "value": "Provide a description of this molecule. [C][N][Branch1][Ring1][C][=C][N][=O]"}, {"from": "gpt", "value": "The molecule is a yellow, volatile liquid nitrosamine that emits toxic fumes of nitrogen oxides when heated to decomposition.  N-Nitrosomethylvinylamine has been found in several vegetables, cheeses, meats, alcoholic beverages and fruits. It is only used as a research chemical to induce tumor formation. Exposure to this substance causes liver and kidney damage. N-Nitrosomethylvinylamine is reasonably anticipated to be a human carcinogen. (NCI05)"}]