[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a dihydroceramide in which the ceramide N-acyl group is specified as octadecanoyl (stearoyl). It has a role as a mouse metabolite. It is a N-acylsphinganine and a N-stearoyl-sphingoid base. It is functionally related to an octadecanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Ring1][C][O][C@@H1][Branch1][S][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O]"}]