You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule has Pungent, irritating odor. Polymerizes under influence of light & in presence of sulfuric acid forming white solid trimer called metachloral.
user
O=CC(Cl)(Cl)Cl
assistant