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 Odorless. When heated to decomposition it emits acrid smoke and irritating fumes.
user
C#CC1(O)CCC2C3CCC4=C(CCC(=O)C4)C3CCC21C
assistant