Description_x000D_ Application_x000D_ (±)-Geosmin has been used as a standard for GC-MS based analytical techniques. Geosmin has also been used to study its adsorption on activated carbon._x000D_ Packaging_x000D_ 5, 10 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ (±)-Geosmin is produced by Streptomyces coelicolor and cyanobacteria._x000D_ Geosmin is a naturally occurring biomolecule that contributes to the earthy or musty flavor and odor in water supplies. This water contaminant can be detected by humans at ng/l (parts per trillion) concentrations.