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Δ1-Testosterone (Δ1-dihydrotestosterone, 17β-hydroxy-5α-androst-1-en-3-one, 1-Testo, 1-T) is an androgen and anabolic steroid that differs from testosterone by having a 1,2-double bond instead of a 4,5-double bond in its A ring. It was legally sold as a prohormone in the United States until 2005, when it was reclassified as a Schedule III drug.

A 2006 study determined that Δ1-testosterone has a high androgenic and anabolic potency even without being metabolized, so it can be characterized as a typical anabolic steroid. Δ1-Testosterone binds in a manner that is highly selective to the androgen receptor (AR) and has a high potency to stimulate AR-dependent transactivation. In vivo, an equimolar dose of 1-testosterone has the same potency to stimulate the growth of the prostate, the seminal vesicles and the androgen-sensitive levator ani muscle as the reference anabolic steroid testosterone propionate, but unlike it, Δ1-testosterone also increases liver weight.

Doping with Δ1-testosterone can be detected in urine samples using gas chromatography.
A prodrug of Δ1-testosterone is Δ1-androstenedione, which may be synthesized from stanolone acetate.

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Wuhan Biocar Bio-Pharm Co., Ltd.

Address: 858 East Lake High-tech Development Zone Wuhan Hubei China, Wuhan, Hubei, China, 430000
Tel: 15327198583
Wuhan Biocar Bio-Pharm Co., Ltd. is a leading manufacturer and supplier of Anabolic Steroid Hormone Powders, Pharmaceutical raw materials, Pharmaceutical Intermediates. After decades years with the experts and professors from Wuhan University, Wuhan Institute of Technology and HUST we estabilished a group of technical experts, optimize the steroid synthetic and green production process to ensure that Biocar production technology in a leading international Level. Biocar steroid products have certified by GMP and COS, sales network spread over the countries in Asia, Europe, North America, South America. Wuhan Biocar Bio-Pharm Co., Ltd was founded in 2001, formerly known as Tongshan Pharmaceutical Factory Company, which is a national high-tech enterprises. In 2014, in the process of creating a National Industrial Base, the Board of Directors decided to respond to the call to remove headquarter to Wuhan Biomedical Park. At the same time, with the advantages of the park policy, we carry out production and research cooperation with Humanwell Healthcare Gruop Co.,Ltd, Pfizer Inc. and the United Pharmacy Ltd., also introduce we oreign investment, officially changed its name to Biocar Bio-Pharm Co.,ltd.