Keywords: Retene-3D-balls.png Ball-and-stick model of the retene molecule a polycyclic aromatic hydrocarbon present in coal tar Derived from File Benzene-aromatic-3D-balls png File Cyclohexylamine-top-3D-balls png and File Trans-but-2-ene-3D-balls png 2010-07-25 Jynto and Ben Mills Polycyclic aromatic hydrocarbons Phenanthrenes Isopropyl compounds Images by Jynto |