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 Odorless. Dt50 (25 °c) 58 days (ph 5, 7), 34 days (ph 9).
user
O=c1ccc(=O)[nH][nH]1
assistant