You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule has An initially pleasant odor which quickly becomes sharp and irritating ... not unpleasant , sweetish smell in small quantities. Polymerizes in light;...may polymerize violently; vapor forms explosive mixtures with air; hydrolysis catalyzed by acid- or base-forming acetic acid and acetaldehyde When heated to decomp, burns & emits fumes with an acrid odor.
user
C=COC(C)=O
assistant