English
bolasterone
Sign in to saveAlso known as U19763, 17beta-Hydroxy-7alpha,17-dimethylandrost-4-en-3-one, 7alpha,17alpha-Dimethyltestosterone, 7α,17α-dimethyltestosterone, Methosarb
Bolasterone (, ) (brand names Myagen, Methosarb; former developmental code name U-19763), also known as 7α,17α-dimethyltestosterone, is a 17α-alkylated androgen/anabolic steroid (AAS) which is used in veterinary medicine. It has close structural similarity to testosterone, and like methyltestosterone has a methyl group at C17α in order to increase oral bioavailability. In addition, it is also 7α-methylated, similar to its 7β-methylated isomer calusterone. The medication has a low to moderate ratio of anabolic to androgenic activity, similar to that of fluoxymesterone.
Research
17 papers- Metabolites identification of anabolic steroid bolasterone in vitro and in rats by high resolution liquid chromatography mass spectrometry.Drug testing and analysis · 2023
- Metabolic Identification Based on Proposed Mass Fragmentation Pathways of the Anabolic Steroid Bolasterone by Gas Chromatography Tandem Mass Spectrometry.Drug testing and analysis · 2025
- Optimization of the high-performance liquid chromatographic separation of a complex mixture containing urinary steroids, boldenone and bolasterone: application to urine samples.Journal of chromatography. B, Biomedical sciences and applications · 2000
- CLINICAL EVALUATION OF A NEW ANABOLIC AGENT 7-ALPHA,17-ALPHA-DIMETHYLTESTOSTERONE (BOLASTERONE).Clinical pharmacology and therapeutics · 1963
- Effects of structural characteristics of (un)conjugated steroid metabolites in their collision cross section value.Analytica chimica acta · 2023
via PubMed
~1 min read
Encyclopedic overview
4 sectionsContents
- Chemistry
- Synthesis
- See also
- References
Bolasterone (, ) (brand names Myagen, Methosarb; former developmental code name U-19763), also known as 7α,17α-dimethyltestosterone, is a 17α-alkylated androgen/anabolic steroid (AAS) which is used in veterinary medicine. It has close structural similarity to testosterone, and like methyltestosterone has a methyl group at C17α in order to increase oral bioavailability. In addition, it is also 7α-methylated, similar to its 7β-methylated isomer calusterone. The medication has a low to moderate ratio of anabolic to androgenic activity, similar to that of fluoxymesterone.
Bolasterone is on the World Anti-Doping Agency's list of prohibited substances, and is therefore banned from use in most major sports.
Excerpted from Wikipedia’s “bolasterone” article, available under the CC BY-SA 4.0 licence.