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 signalling molecule, a emulsifier, and a surfactant. The molecule is a nutrient, membrane stabilizer, energy source, energy storage. Please represent the molecule in SMILES.
user
C=CCSSC=CCS(=O)(=O)CC=C
assistant