[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a hexadecanoate ester obtained by formal condensation of the carboxy group of hexadecanoic acid with the hydroxy group of butanol. It has a role as an animal metabolite, a plant metabolite and an insect repellent."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C][C][C]"}]