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, energy source, nutrient, energy storage.
user
NC(=O)CCCCC(CCS)SC(=O)CCC(=O)O
assistant