[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][N][Branch1][Ring2][C][Ring1][Branch1][N][=O]"}, {"from": "gpt", "value": "The molecule is a clear, yellow, oily, liquid nitrosamine that decomposes when exposed to light and emits toxic fumes of nitrogen oxides when heated to decomposition. N-Nitrosopyrrolidine is used in laboratory research to induce tumors in experimental animals. This substance may be formed during cooking of foods that contain sodium nitrite as a preservative, including meat, fish and cheese. Exposure to N- Nitrosopyrrolidine irritates the skin and eyes and can damage the liver and kidneys. This substance is reasonably anticipated to be a human carcinogen. (NCI05)"}]