You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? When heated to decomposition it emits acrid smoke and fumes.
user
O=C([O-])CC(O)(CC(=O)[O-])C(=O)[O-].OCC(O)C(O)C(O)C(O)CO.[Fe+3]
assistant