You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule has Butanolic. When heated to decomposition it emits toxic fumes of phosphorous oxides.
user
CCCCOP(=O)(OCCCC)Oc1ccccc1
assistant