WADA is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Last reviewed on 2026-03-16. Where a claim depends on a specific study, the study is described rather than over-claimed.
Analytical chemists detect SR9009 with liquid chromatography-tandem mass spectrometry, commonly abbreviated LC-MS/MS. Sample preparation may involve protein precipitation, liquid-liquid extraction, or solid-phase extraction before analysis. Laboratories can target the parent compound or its metabolites, depending on the matrix and the purpose of testing. Anti-doping methods require sensitive and specific assays because concentrations in biological samples can be low. Reference standards and validated methods are essential for reliable identification and quantification.
Regulatory agencies have not approved SR9009 for human therapeutic use. It is typically sold as a research chemical with labels stating that it is not for human consumption. The World Anti-Doping Agency prohibits the substance in sport, generally under the category of non-approved substances. Customs and national laws may restrict importation, sale, or possession. Product quality and legal status can vary by country and vendor, and therapeutic claims are not permitted in regulated advertising because the compound lacks approval.
SR9009 binds REV-ERB receptors and alters their repressive activity on target genes. This action can change transcription of genes involved in lipid handling, glucose metabolism, and mitochondrial function. In rodent studies, treated animals have shown changes in muscle oxidative capacity and exercise performance, though effects vary by dose, duration, and model. The precise molecular steps connecting receptor binding to whole-body outcomes are still an active area of investigation. Findings in animals do not automatically translate to humans.
Because REV-ERB receptors are core clock components, SR9009 has been examined for effects on daily rhythms as well as metabolism. Research has explored whether the compound can shift or reinforce circadian gene expression in tissues such as liver and muscle. Some studies report improved metabolic markers in obese or diabetic mice, while others show context-dependent responses. Questions remain about which effects are direct, which are secondary to timing, and how they might differ across species.
| Property | Value | Notes |
|---|---|---|
| Regulatory status | Not approved for human use | Research-use-only status in many markets |
| WADA status | Prohibited in sport | Generally listed as a non-approved substance |
| Detection technique | LC-MS/MS | Common for urine and blood analysis |
| Common alias | Stenabolic | Informal market nickname, not a pharmacopoeial name |
| Purity check | HPLC or LC-UV | Independent certificate of analysis is typical |
SR9009 is a synthetic small molecule studied as a REV-ERB agonist. REV-ERBα and REV-ERBβ are nuclear receptors that help regulate circadian rhythms and metabolic gene expression. The compound was identified in academic screening efforts to find synthetic ligands for these receptors. In cell and animal studies, SR9009 alters transcription of genes involved in lipid and glucose metabolism, and it can shift circadian behavior. It is not an approved therapeutic agent.
Mechanistically, SR9009 binds the ligand-binding domain of REV-ERBα/β and enhances recruitment of corepressor complexes. This represses target genes rather than activating them. Because REV-ERB proteins normally compete with ROR proteins at shared response elements, the net effect depends on tissue and timing. Researchers use SR9009 to probe how nuclear receptor signaling links the clock to metabolism, inflammation, and muscle biology. Findings are largely preclinical, and the precise contribution of each receptor subtype remains under study.
SR9009 is frequently discussed in fitness and research-chemical contexts, yet it has no approved medical indication. Regulatory agencies have not authorized it for human use, and it is not a standard prescription drug. Some sports organizations list it as a prohibited substance because of its potential performance-enhancing properties. Published human data are sparse, so claims about its effects in people often rely on animal models or anecdotal reports. Quality and identity of online materials can vary widely.
Analytical identification of SR9009 typically relies on liquid chromatography coupled with tandem mass spectrometry. In biological samples, researchers first separate the compound from matrix components using protein precipitation, liquid-liquid extraction, or solid-phase extraction. High-performance liquid chromatography with ultraviolet detection and nuclear magnetic resonance spectroscopy can support structural confirmation of reference materials. Because SR9009 is a small, relatively lipophilic molecule, reverse-phase columns and acidic mobile phases are common. Laboratories often include isotope-labeled internal standards to improve quantification and to correct for ion suppression.
Stability depends on physical form, temperature, light exposure, and solvent. Solid SR9009 is generally stored cold and dry, with protection from light to limit degradation. Dimethyl sulfoxide stocks are common for laboratory work, but repeated freeze-thaw cycles can reduce compound integrity. Aqueous solutions may be less stable than organic stocks, and the ethyl ester in the structure can be susceptible to hydrolysis under certain conditions. Researchers typically validate storage conditions and recheck purity before quantitative experiments, especially when using archived material.
Regulatory treatment of SR9009 varies by country and region. It is not approved as a pharmaceutical, and several jurisdictions restrict its sale for human consumption. Some authorities classify it as a research chemical, a prescription-only substance, or a prohibited performance-enhancing agent in sport. Purchasers may encounter certificates of analysis, but these documents do not guarantee identity, purity, or legality. In research settings, institutional safety reviews and controlled procurement help ensure that materials are handled under appropriate oversight. The absence of harmonized rules means that legal status can change and requires verification.
Nazi Party election results presents a series of tables that summarize the election results of the National Socialist German Workers' Party (German: Nationalsozialistische Deutsche Arbeiterpartei, NSDAP), usually referred to as the Nazi Party, in German national and state elections, during its existence. They display the number of votes received, the percentage of the vote, the Party's numerical ranking, the number of parliamentary seats won and the change in the number of seats.
Lung fibrosis is a recognized complication of rheumatoid arthritis. It is also a rare but well-recognized consequence of medications used to treat RA such as methotrexate and leflunomide). Caplan's syndrome describes lung nodules in individuals with RA and additional exposure to coal dust. Exudative pleural effusions are also associated with RA.
=== Domestic use === When a sanitary potable water supply is plumbed to an unsanitary system, for example lawn sprinklers, a dish washer or a washing machine, a check valve called a backflow preventer is used to prevent contaminated water from re-entering the domestic water supply. Some types of irrigation sprinklers and drip irrigation emitters have small check valves built into them to keep the lines from draining when the system is shut off. Check valves used in domestic heating systems to prevent vertical convection, especially in combination with solar thermal installations, also are called gravity brakes. Rainwater harvesting systems that are plumbed into the main water supply of a utility provider may be required to have one or more check valves fitted to prevent contamination of the primary supply by rainwater. Hydraulic jacks use ball check valves to build pressure on the lifting side of the jack. Check valves are commonly used in inflatables, such as toys, mattresses and boats. This allows the object to be inflated without continuous or uninterrupted air pressure.
=== Copper toxicity === The classic copper-catalyzed azide-alkyne cycloaddition has been an extremely fast and effective click reaction for bioconjugation, but it is not suitable for use in live cells due to the toxicity of Cu(I) ions. Toxicity is due to oxidative damage from reactive oxygen species formed by the copper catalysts. Copper complexes have also been found to induce changes in cellular metabolism and are taken up by cells. There has been some development of ligands to prevent biomolecule damage and facilitate removal in in vitro applications. However, it has been found that different ligand environments of complexes can still affect metabolism and uptake, introducing an unwelcome perturbation in cellular function.
Sources: en.wikipedia.org
=== Muscle involvement === Diagnosing MCTD involves identification of inflammatory myopathy that is histologically and clinically identical to polymyositis (PM). The majority of persons with MCTD do not experience clinical weakness. People with MCTD typically have mild myositis, with normal muscle enzymes and electromyographic results. Some people may be completely asymptomatic. Myositis can be severe and difficult to differentiate from conventional dermatomyositis. Myalgia is a prevalent complaint among patients with MCTD.
=== Eating chocolate === The traditional types of chocolate are dark, milk and white. All of them contain cocoa butter, which is the ingredient defining the physical properties of chocolate (consistency and melting temperature). Plain (or dark) chocolate, as its name suggests, is a form of chocolate that is similar to pure cocoa liquor, although is usually made with a slightly higher proportion of cocoa butter. It is simply defined by its cocoa percentage. In milk chocolate, the non-fat cocoa solids are partly or mostly replaced by milk solids. In white chocolate, they are all replaced by milk solids, hence its ivory color. Other forms of eating chocolate exist, these include raw chocolate (made with unroasted beans) and ruby chocolate. An additional popular form of eating chocolate, gianduja, is made by incorporating nut paste (typically hazelnut) to the chocolate paste.
In practice, existing TA units found themselves stripped of regular training staffs and often many of their own officers and NCOs to form and train the new units, long before their own units were fully trained. As a result, some TA divisions had made little progress by the time the Second World War began; others, who had started from a stronger position, were able to complete this work within a matter of weeks.
Sources: en.wikipedia.org
=== Healthcare === Talarico supports healthcare reform and universal healthcare as a human right. He supports making buy-in Medicare or a public health insurance option available to every American, calling his healthcare plan "Medicare for Y'all". In August 2026, Talarico unveiled a healthcare plan focused on breaking up vertically integrated healthcare companies, including pharmacy benefit managers, insurance companies, and hospital networks. The proposal included measures to increase transparency in pharmacy benefit manager pricing, encourage the development and approval of generic drugs, and cap out-of-pocket healthcare costs.
== Chemistry == Desglymidodrine, also known as 2,5-dimethoxy-β-hydroxyphenethylamine, is a substituted phenethylamine derivative. Midodrine's experimental log P is -0.5 and its predicted log P ranges from -0.49 to -0.95. The predicted log P of desglymidodrine ranges from -0.01 to 0.15.
=== Speciality style ciders === Speciality style ciders are open to a lot more manipulation than modern or heritage style ciders. There is no restriction to apple varieties used and the list of speciality styles continues to expand. Listed on the USACM Cider Style Guide, speciality styles include: fruit, hopped, spiced, wood-aged, sour, and iced ciders. Fruit ciders have other fruit or juices added before or after fermentation, such as cherries, blueberries and cranberries. Hopped cider is fermented with added hops, common hop varieties being Cascade, Citra, Galaxy, and Mosaic. Spiced ciders have various spices added to the cider before, during, or after fermentation. Spices like cinnamon and ginger are popular to use in production. Wood-aged ciders are ciders that are either fermented or aged in various types of wood barrels, to aid in extraction of woody, earthy flavours. Sour ciders are high acid ciders that are produced with non-standard, non-Saccharomyces yeast and bacteria, which enhance acetic and lactic acid production, to reach a sour profile. Ice ciders can be made by using pre-pressed frozen juice or frozen whole apples. Whole apples either come frozen from the orchard, dependent on harvest date, or are stored in a freezer prior to pressing. When the pre-pressed juice or whole apples freeze, sugars are concentrated and mostly separated from the water. Whole apples are then pressed to extract the concentrated juice. For the pre-pressed juice the concentrated solution is drawn off while thawing occurs.
Sources: en.wikipedia.org
Legality depends on the country and the intended use. In many places it is not approved as a medicine and may be sold only as a research chemical. Importation or possession can be restricted, and sports organizations prohibit it.
Anti-doping laboratories typically use LC-MS/MS to detect SR9009 or its metabolites in urine or blood. The exact assay depends on the laboratory and the testing program. Detection can be challenging because the compound may be rapidly metabolized and present at low levels.
Stenabolic is an informal nickname used in online fitness and research-chemical markets, not an official drug name. It likely references reported effects on endurance in rodent studies. The nickname does not imply approval or proven human benefit.
SR9009 is a synthetic research compound that acts on REV-ERB nuclear receptors. It is not approved for human use and is sold only as a research chemical. Its effects have been studied mainly in cells and rodents.