You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is both a environmental contaminant and a nutrient. Use the above information to create a molecule.
user
COC(=O)C1=COC(OC2OC(CO)C(O)C(O)C2O)C(=CCOC(C)=O)C1CC(=O)OCCc1ccc(O)cc1
assistant