[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an N-acylsphingosine in which the ceramide N-acyl group is specified as octacosanoyl. It is a N-acylsphingosine and a N-(ultra-long-chain-acyl)-sphingoid base. It is functionally related to an octacosanoic acid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][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]"}]