You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule has Penetrating buttery taste on dilution...taste characteristics at 1 to 5 ppm: sweet buttery, creamy, cheesy, slightly toasted dairy, with a rich baked goods nuance and good mouth feel. When heated to decomposition it emits acrid smoke and irritating fumes. The molecule has Somewhat sweet odor similar to quinone ... detection: 20 ppb. aroma characteristics at 1.0%: buttery diacytl-like, fermented dairy and creamy, popcorn buttery.
user
CCC(=O)C(C)=O
assistant