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 is both a environmental contaminant and a nutrient.
user
CC1OC(OC2C(Oc3cc(O)c4c(=O)c(O)c(-c5ccc(O)c(O)c5)oc4c3)OC(CO)C(O)C2O)C(O)C(O)C1O
assistant