You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): When heated to decomposition it emits very toxic fumes of hydrogen chloride and nitrogen oxides. The molecule has Faint odor.
user
O=C1CN=C(c2ccccc2Cl)c2cc([N+](=O)[O-])ccc2N1
assistant