[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a synthetic, solid, fatty alcohol and nonionic surfactant. Cetyl alcohol is used as an emulsifying agent in pharmaceutical preparations."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O]"}]