Systematic (IUPAC) name | |
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(5S,8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one | |
Clinical data | |
Pregnancy cat. | ? |
Legal status | Schedule III (US) |
Pharmacokinetic data | |
Metabolism | Liver |
Identifiers | |
CAS number | 65-06-5 |
ATC code | ? |
PubChem | CID 579094 |
DrugBank | DB01481 |
ChemSpider | 206590 |
ChEBI | CHEBI:59714 |
Chemical data | |
Formula | C19H28O2 |
Mol. mass | 288.42 |
SMILES | eMolecules & PubChem |
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1-Testosterone (delta1-dihydrotestosterone, 17β-hydroxy-5alpha-androst-1-en-3-one, 1-Testo, 1-T) is an anabolic steroid that differs from testosterone by having a 1,2-double bond instead of 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 1-testosterone has a high androgenic and anabolic potency even without being metabolized, so it can be characterized as a typical anabolic steroid. 1-Testosterone binds 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 AAS testosterone propionate, but unlike it, 1-testosterone also increases liver weight.[1]
Doping with 1-testosterone can be detected in urine samples using gas chromatography.[2]
A prodrug of 1-testosterone is 5α-androst-1-ene-3,17-dione, which may be synthesized from stanolone acetate.[3]