You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is both a nutrient and a environmental contaminant.
user
O=C(OCC1OC(Oc2cc(O)c3c(c2)OC(c2ccc(O)cc2)CC3=O)C(O)C(O)C1OC(=O)c1cc(O)c(O)c(O)c1)c1cc(O)c(O)c(O)c1
assistant