[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an organic sodium salt resulting from the replacement of the proton from the carboxy group of hexanoic acid by a sodium ion. It has a role as a human metabolite. It contains a hexanoate."}, {"from": "gpt", "value": "[C][C][C][C][C][C][=Branch1][C][=O][O-1].[Na+1]"}]