[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an acylcholine with an acyl group that is hexanoyl. It has a role as a metabolite. It is functionally related to a hexanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][=Branch1][C][=O][O][C][C][N+1][Branch1][C][C][Branch1][C][C][C]"}]