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 nutrient and a waste product.
user
O=C(O)C1OC(Oc2ccc(-c3cc(=O)c4c(O)cc(OC5OC(C(=O)O)C(O)C(O)C5OC5OC(C(=O)O)C(O)C(O)C5O)cc4o3)cc2)C(O)C(O)C1O
assistant