You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is both a nutrient and a waste product.
user
O=C(OC1Cc2c(O)cc(OC3OC(CO)C(O)C(O)C3O)cc2OC1c1cc(O)c(O)c(O)c1)c1cc(O)c(OC2OC(C(=O)O)C(O)C(O)C2O)c(O)c1
assistant