title: Spy dust. Detecting a chemical tracking agent.
mesh_terms: D002273:Carcinogens / Q000032:analysis*; D006801:Humans; D009578:Nitrobenzenes / Q000032:analysis*
chemical_list: D002273:Carcinogens; D009578:Nitrobenzenes; C047633:5-(4-nitrophenyl)-2,4-pentadienal