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1-Testosterone (Item No. 24079) is an analytical reference standard categorized as an anabolic androgenic steroid. Anabolic steroids, including 1-testosterone, have been used to enhance physical performance in racehorses and athletes. 1-Testosterone is regulated as a Schedule III compound in the United States. This product is intended for research and forensic applications.

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1-Testosterone is a potent androgen with anabolic properties. Since the begining of the year 2005, the use of steroid precursors (prohormones) is illegal in the United States.

ChEBI: Delta(1)-dihydrotestosterone is an anabolic steroid that differs from testosterone by having a 1,2-double bond instead of a 4,5-double bond in its A ring. A potent androgen with anabolic properties, it was legally sold as a prohormone in the U.S.A. until 2005, when it was reclassified as a Schedule III drug. It has a role as an anabolic agent. It is an anabolic androgenic steroid, a 17beta-hydroxy steroid and a 3-oxo-Delta(1) steroid.

[1] W. H. KWOK. Metabolic studies of 1-testosterone in horses[J]. Drug Testing and Analysis, 2012, 5 2: 81-88. DOI: 10.1002/dta.1380