You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is both a nutrient and a environmental contaminant.
user
CC1(C)CCC(=O)C2(C)C1CCC1(C)C2C(O)CC2C3(C)CCC(O)C(C)(C)C3CCC21C
assistant