You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: Hazardous polymerizaton may occur. usually contains inhibitors to prevent polymerization. polymerizaton may be caused by elevated temperature, oxidizers, peroxides, or sunlight. ... uninhibited monomer vapor may form polymer in vents and other confined spaces. methacrylic acid, inhibited/ The molecule has Acrid, repulsive odor. When heated to decomposition it emits acrid smoke and irritating fumes.
user
C=C(C)C(=O)O
assistant