[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. Withdrawn from the Canadian, US, and UK markets in 1976 due to carcinogenicity."}, {"from": "gpt", "value": "[C][C][C][Branch1][Ring1][C][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C][C][O][C][C][N][Branch1][Ring1][C][C][C][C]"}]