[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C@H1][Branch1][#Branch1][C@H1][Branch1][Ring1][C][O][N][O]"}, {"from": "gpt", "value": "The molecule are the major bases of the sphingolipids in mammals. (Dorland, 28th ed)"}]