[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Populus tremula, Daphnia magna, and other organisms with data available."}, {"from": "gpt", "value": "[H+1].[H+1].[C][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O-1]"}]