[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a monohydroxy fatty acid that is heptanoic acid with a hydroxy group substituted at position C-2. It has a role as a metabolite. It is functionally related to a heptanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O]"}]