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 has Mild hydrocarbon odor. When heated to decomposition they emit toxic fumes of chlorine. polychlorinated biphenyls/
user
Clc1cccc(-c2ccc(Cl)c(Cl)c2Cl)c1Cl
assistant