CAS Number: 483-65-8
Molecular Weight: 234.33 [g/mol]
Molecular Formula: C18H18
Retene is a polycyclic aromatic hydrocarbon. It occurs naturally in the tars obtained by the distillation of resinous woods. It is one of the air pollutants.
This molecule is widely used as a bio-marker of wood combustion, specially forest fire. It is a major product of pyrolysis of conifer trees. Like some other chemicals, once it is released into the atmosphere, can travel to other places where it is not produced. For example one study shows the presence of retene in air at Marys peak, OR USA, which indicates there was some forest fire.
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Chemistry of Retene