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 membrane stabilizer, surfactant, food additive, energy storage. The molecule is a signalling molecule, energy source, nutritional supplement, emulsifier, and smooth.
user