You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: When heated to decomposition it emits acrid smoke and irritating fumes. It impacts short bowel syndrome. Polymerization may occur in presence of acids or caustics. The molecule has Characteristic odor similar to acetaldehyde.
user
CCC=O
assistant