You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a membrane stabilizer, hormone, emulsifier and belongs to the drug metabolite class of molecules. The molecule is a energy storage, surfactant, waste product, signalling molecule, energy source.
user
NCCCC(=O)C(=O)O
assistant