3d image of 1-nitropyrene skeletal formula

1-nitropyrene iarc carcinogen pyrene diesel carcinogenic human metabolite urinary exhaust polycyclic aromatic molecular formula mass spectra biomarker food formation fluorescence urine 3d rendering chemical biochemistry organic biology molecule structural structure skeletal geometry substance compound component reagent production synthesis metabolism toxic toxicity toxin poisoning danger hazard carcinogen cancer limit intoxication