You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a membrane stabilizer, energy storage, nutrient, surfactant, emulsifier, energy source. Please represent the molecule in SMILES.
user
CCCCCCCCC1=C(CCCCCCC(O)C(=O)O)C1
assistant