You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a energy source, emulsifier, nutrient, energy storage, membrane stabilizer, surfactant.
user
CC1(C=O)C2CC3C(C2)C31C
assistant