Description: Mesterolone (Item No. 21171) is an analytical reference standard categorized as an anabolic androgenic steroid. Formulations containing mesterolone have been used in patients with low testosterone or symptoms of aging male syndrome. Mesterolone cannot be aromatized to estrogens, unlike other androgens. This compound is the active ingredient in different pharmaceutical preparations that have been used medically but have also been widely applied in sports in order to improve athlete performance. Mesterolone is regulated as a Schedule III drug in the United States. This product is intended for research and forensic applications.
Mesterolone is a synthetic androgen and a dihydrotestosterone derivative. Mesterolone is rarely used for replacement therapies due to its weak androgenic activity.