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: When heated to decomposition it emits toxic fumes of nitroxides. The molecule has Healthy subjects can detect the odor of no2, in some cases at concentrations below 188 ug/cu m (0.1 ppm)..
user
[O]N=O
assistant