The short version of WADA fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2026-02-14. Anything still debated is marked as such rather than presented as settled.
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.
Research interest in SR9009 grew from studies of circadian biology and metabolic disease. Preclinical reports describe effects on exercise capacity, muscle metabolism, and blood lipid levels in rodents, but these findings come from controlled laboratory settings. The compound has low oral bioavailability in animals, which limits systemic exposure after swallowing. Investigators often use injected routes in experiments to achieve measurable plasma concentrations. Human clinical data are sparse, no approved therapeutic product exists, and whether animal effects translate to humans remains an open question.
Regulatory and sporting contexts treat SR9009 as a prohibited substance in many elite competitions. Its presence on banned lists reflects concerns about performance enhancement and unknown long-term safety. Analytical chemists have developed methods to detect the parent compound and its metabolites in urine and blood. Literature discussions distinguish between in vitro potency, animal pharmacology, and anecdotal human reports. The latter are difficult to verify because products sold online may lack purity or contain different compounds.
| Property | Value | Notes |
|---|---|---|
| Common synonyms | SR9009; Stenabolic | Nickname is not a chemical name. |
| Typical analytical method | LC-MS/MS | Often with isotope-labeled internal standard. |
| Storage temperature | -20 °C | Desiccated and protected from light. |
| Solution stability | DMSO stock; avoid freeze-thaw | Store at -20 to -80 °C. |
| Regulatory status | Not approved; varies by country | May be restricted as research chemical. |
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.
Several misconceptions surround SR9009. It is often described as a SARM, a steroid, or an exercise pill, but its known target is the REV-ERB receptor family. Rodent studies have examined exercise capacity and metabolic markers, yet human outcomes remain unproven. Oral bioavailability appears low in animals, and human pharmacokinetics are not well characterized. Online products may contain impurities or different compounds, so identity and purity testing are important for research use.
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.
== Certification == In the US, three organizations are responsible for the certification of trained internists (i.e., doctors who have completed an accredited residency training program) in terms of their knowledge, skills, and attitudes that are essential for patient care: the American Board of Internal Medicine, the American Osteopathic Board of Internal Medicine and the Board of Certification in Internal Medicine. In the UK, the General Medical Council oversees licensing and certification of internal medicine physicians. The Royal Australasian College of Physicians confers fellowship to internists (and sub-specialists) in Australia. The Medical Council of Canada oversees licensing of internists in Canada.
== Education and career == Kessler studied chemistry at the Leipzig University in 1958–1961. He completed his Master (Diplom) in 1963, and his PhD at 1966 with Eugen Müller at the University of Tübingen. In 1969, he underwent habilitation in organic chemistry. He was briefly a university lecturer at Tübingen, then he obtained an organic chemistry lecturer position at the University of Frankfurt am Main. In 1989, he became Professor of organic chemistry and biochemistry at the Technical University of Munich (TUM), where he was in charge of overseeing the installation of one of the four 900 MHz NMR spectrometers in Germany at that time. At TUM, he was Dean of the Faculty of Chemistry, Biology and Earth Sciences from 1994 to 1996. From October 2008, he is a Carl-von-Linde Professor (Emeritus Professor of Excellence) at the TUM Institute for Advanced Study.
== External links == CD49a+antigen at the U.S. National Library of Medicine Medical Subject Headings (MeSH) Human ITGA1 genome location and ITGA1 gene details page in the UCSC Genome Browser. ITGA1[link removed] Info with links in the Cell Migration Gateway Archived 2014-12-11 at the Wayback Machine PDBe-KB provides an overview of all the structure information available in the PDB for Human Integrin alpha-1
In November 2011, the results of a double-blind, placebo-controlled study (financed by Hythiam and carried out at UCLA) were published in the peer-reviewed journal Addiction. It concluded that Gabasync is ineffective: "The PROMETA protocol, consisting of flumazenil, gabapentin, and hydroxyzine, appears to be no more effective than placebo in reducing methamphetamine use, retaining patients in treatment, or reducing methamphetamine craving."
Sources: en.wikipedia.org
primary active transporters (allow flow uphill against electrochemical gradients) such as ABC (ATP Binding Cassette) transporters by coupling transport to an energy releasing event such as ATP hydrolysis ion channels aquaporins (water channels)
After World War II the foundation sent a team to West Germany to investigate how it could become involved in reconstructing the country. They focused on restoring democracy, especially regarding education and scientific research, with the long-term goal of reintegrating Germany into the Western world. The foundation also supported the early initiatives of Henry Kissinger, such as his directorship of Harvard's International Seminars (funded as well by the Central Intelligence Agency) and the early foreign policy magazine Confluence, both established by him while he was still a graduate student. In 2021, Rajiv J. Shah, president of the Rockefeller Foundation, released a statement condemning eugenics and supporting the anti-eugenics movement. He stated that
mid body The centrally constricted region that forms across the central axis of a cell during cytokinesis, constricted by the closing of the contractile ring until the daughter cells are finally separated, but occasionally persisting as a tether between the two cells for as long as a complete cell cycle.
Sources: en.wikipedia.org
== Research development == In 1978 he began research at McGill on a dietary protein source that would boost immune system performance. Bounous contends that a deficiency in the protein glutathione is linked to several diseases, and that a lack of innate cysteine that inhibits glutathione production. Cysteine-Rich Protein Reverses Weight Loss in Lung Cancer Patients Receiving Chemotherapy or Radiotherapy Molecular pathogenesis and prevention of prostate cancer. Whey protein concentrate (WPC) and glutathione modulation in cancer treatment. The use of a whey protein concentrate in the treatment of patients with metastatic carcinoma: a phase I-II clinical study. Competition for glutathione precursors between the immune system and the skeletal muscle: pathogenesis of chronic fatigue syndrome.
It is a legal requirement that an assessment of major organ toxicity be performed (effects on the heart and lungs, brain, kidney, liver and digestive system), as well as effects on other parts of the body that might be affected by the drug (e.g., the skin if the new drug is to be delivered on or through the skin). Such preliminary tests are made using in vitro methods (e.g., with isolated cells), but many tests can only use experimental animals to demonstrate the complex interplay of metabolism and drug exposure on toxicity. However, aside from regulatory requirements, there is a broad range of other factors, such as patient requirements, that are considered during development and testing. The information gathered from this preclinical testing, as well as information on CMC, and submitted to regulatory authorities (in the US, to the FDA), as an Investigational New Drug (IND) application. If the IND is approved, development moves to the clinical phase.
In case of cGMP fine chemicals, process validation is also required. This consists of the three elements: process design, process qualification and continued process verification. Once a new chemical process has been introduced successfully on an industrial scale, process optimization is called upon to improve the economics. As a rule of thumb, it should be attempted to reduce the costs of goods sold (COGS) by 10-20%, every time the yearly production quantity has doubled. The task extends from fine tuning the currently used synthetic method all the way to the search for an entirely different second generation process. Specific provisions include the increase of overall yield, the reduction of the number of steps, raw material cost, solvent, catalyst, enzyme consumption, environmental impact.
Sources: en.wikipedia.org
The most common approach is liquid chromatography-tandem mass spectrometry, often after extraction from blood, urine, or tissue. Ultraviolet detection and nuclear magnetic resonance spectroscopy are used mainly for reference material characterization. Isotope-labeled internal standards improve accuracy.
Solid material is usually kept at -20 °C, desiccated, and protected from light. Dimethyl sulfoxide stocks should be stored cold and subjected to minimal freeze-thaw cycles. Aqueous solutions are generally less stable and should be prepared fresh when possible.
Legality depends on the country and the intended use. It is not an approved medicine, and some places restrict or ban sales for human consumption. Buyers should verify local rules and product documentation before procurement.
SR9009 is a synthetic small molecule studied as an agonist of the REV-ERB nuclear receptors. It is not an approved medicine, and its effects in humans are not well characterized.