The short version of research compound fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2025-07-27 and is reviewed periodically as new material appears.
Analytical methods for SR9009 typically rely on liquid chromatography coupled with tandem mass spectrometry. The technique can separate the parent compound from related substances and detect low concentrations in biological matrices. Urine and blood are common samples in anti-doping testing, while in vitro studies may use cell culture media. Rapid metabolism and low expected concentrations make method validation important for reliable identification. Exact metabolite patterns can vary by species and are not fully mapped.
Regulatory treatment of SR9009 reflects its investigational status. The compound has no approved human therapeutic indication, and sports authorities prohibit its use. It appears on anti-doping lists as a non-approved substance or metabolic modulator, depending on the list version. Products sold online as research chemicals are not quality-controlled medicines, so their identity and purity can differ from the label. Such products may also contain unlisted compounds, which complicates both testing and safety assessment.
Scientific discussion of SR9009 often separates animal evidence from human anecdote. Rodent studies provide controlled data on endurance, metabolism, and gene expression, but they use specific strains, doses, and treatment durations. Human reports are mostly uncontrolled and cannot establish cause and effect. Open questions include oral bioavailability, tissue distribution, metabolic stability, and long-term effects. Review articles generally call for more rigorous pharmacokinetic and safety research before any clinical use could be considered.
Laboratory samples of SR9009 are typically handled as research chemicals rather than pharmaceuticals. Suppliers usually state that the material is for research use only and not for human or veterinary administration. Storage recommendations generally call for a freezer at approximately −20 °C, protection from light, and a desiccated environment. The solid is often described as a white to off-white powder. Solubility is commonly reported in organic solvents such as dimethyl sulfoxide and ethanol, with low solubility in water.
Analytical identification and purity assessment often use high-performance liquid chromatography with ultraviolet detection or mass spectrometry. Liquid chromatography–tandem mass spectrometry is used to detect and quantify SR9009 in biological matrices, including urine and blood, for anti-doping or pharmacokinetic studies. Nuclear magnetic resonance spectroscopy can confirm molecular structure. Stability depends on form and storage: the solid is generally more stable than solutions, and repeated freeze–thaw cycles may degrade samples. Purity is typically reported as a percentage from a certificate of analysis.
Regulatory treatment of SR9009 varies by country and context. It is not approved as a therapeutic drug by agencies such as the United States Food and Drug Administration or the European Medicines Agency. Sports authorities list it as a prohibited substance; the World Anti-Doping Agency classifies it among hormone and metabolic modulators. Legal status for personal possession or sale differs across jurisdictions, and some countries may restrict it under analog or research chemical laws. Buyers who seek verified material often rely on independent laboratory testing because online product labels may not match contents.
| Property | Value | Notes |
|---|---|---|
| Regulatory status | Not approved for human use | Investigational status in most countries |
| Sports status | Prohibited by WADA | Classified as non-approved or metabolic modulator |
| Common analytical method | LC-MS/MS | Used for trace detection in biological samples |
| Typical test matrices | Urine and blood | Sample choice depends on testing program |
| Human trial data | None published | Effects and safety are not established |
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not an approved medicine and has no established human therapeutic use. The compound appears in scientific literature as a tool for probing circadian and metabolic regulation. Online sellers often label it as a research chemical, sometimes using the nickname Stenabolic. Its chemical identity is distinct from selective androgen receptor modulators, stimulants, and peroxisome proliferator-activated receptor delta agonists. Researchers use it mainly in cell and animal experiments.
At the molecular level, SR9009 binds REV-ERBα and REV-ERBβ and alters their repressive activity on target genes. These nuclear receptors help regulate the circadian clock, lipid synthesis, glucose metabolism, and inflammatory pathways. By changing transcription, the compound can shift the timing or magnitude of downstream metabolic processes in model systems. It does not act through androgen receptors or adenosine receptors, which distinguishes it from several substances sold for athletic performance. Whether the same transcriptional changes occur in humans at tolerable exposures remains an open question because controlled human studies are lacking.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ, also called NR1D1 and NR1D2. These receptors help regulate circadian rhythms and metabolic gene programs. The compound was developed for laboratory research, not as an approved therapeutic. Its identity is distinct from steroid hormones and selective androgen receptor modulators. Scientific interest centers on how REV-ERB activation changes gene expression in cells and animal models.
At the molecular level, SR9009 binds the ligand-binding domain of REV-ERB and strengthens recruitment of corepressor proteins such as NCoR and HDAC3. This increases repression of target genes, including Bmal1 and other clock-controlled and metabolic genes. In rodent studies, such changes have been linked to altered lipid handling, glucose metabolism, and energy expenditure. The precise chain of events between receptor binding and whole-body effects remains an active area of research. Findings in animals do not automatically translate to humans.
After graduating in 2006, Smith became a graduate assistant for North Carolina. Smith began his NFL coaching career in 2007, when he became the defensive quality control coach for the Washington Redskins. His father, FedEx founder Frederick W. Smith, was a minority owner of the team. Smith would stay at that position through 2008. In 2010, Smith was hired as a defensive intern and administrative assistant for Ole Miss.
Closer Roberto Osuna converted his 25th consecutive save on May 24, breaking a club record. The streak had started the previous August 18, surpassing Brad Lidge (24 consecutive from June 21–September 28, 2005). Osuna's feat remained the franchise longest until Josh Hader converted 29 consecutive from April 7 to August 29, 2024. On May 28, A. J. Hinch obtained his 500th win as manager, as the Astros toppled the Chicago Cubs, 9–6. Chicago blasted five home runs, but Houston answered with five doubles—two by Jake Marisnick (8)—and two home runs by Alex Bregman (17). Bregman collected three RBI, and Michael Brantley had two hits and two RBI as Houston scored four times in the bottom of the fourth. Josh James (2–0) picked up the victory in relief while surrendering three runs over 2+1⁄3 frames. With injuries stacking up, on May 29 shortstop Carlos Correa sustained a bruised rib during a massage session. He was forced to join fellow All-Stars Springer and Jose Altuve on the injured list (IL) and expected to miss four to six weeks.
ATC code H01 Pituitary and hypothalamic hormones and analogues is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products. Subgroup H01 is part of the anatomical group H Systemic hormonal preparations, excluding sex hormones and insulins. Codes for veterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example, QH01. ATCvet codes without corresponding human ATC codes are cited with the leading Q in the following list.National versions of the ATC classification may include additional codes not present in this list, which follows the WHO version. H01AA01 Corticotropin H01AA02 Tetracosactide H01AB01 Thyrotropin alfa H01AC01 Somatropin H01AC02 Somatrem H01AC03 Mecasermin H01AC04 Sermorelin H01AC05 Mecasermin rinfabate H01AC06 Tesamorelin H01AC07 Somapacitan H01AC08 Somatrogon H01AC09 Lonapegsomatropin H01AX01 Pegvisomant QH01AX90 Capromorelin
Sources: en.wikipedia.org
Effective on new passenger cars sold in the United States after January 1, 1964. front outboard lap belts were required. On September 9, 1966, the National Traffic and Motor Vehicle Safety Act became law in the U.S., the first mandatory federal safety standards for motor vehicles. Effective in 1966, US-market passenger cars were required to be equipped with padded instrument panels, front and rear outboard lap belts, and white reverse (backup) lamps. In 1966, the U.S. established the United States Department of Transportation (DOT) with automobile safety as one of its purposes. The National Transportation Safety Board (NTSB) was created as an independent organization on April 1, 1967, but was reliant on the DOT for administration and funding. However, in 1975 the organization was made completely independent by the Independent Safety Board Act (in P.L. 93-633; 49 U.S.C. 1901). In 1967, equipment specifications by such major fleet purchasers as the City and County of Los Angeles, California, encouraged the voluntary installation in most new cars sold in the US of safety devices, systems, and design features including:
AS9000 (1997) Aerospace Basic Quality System Standard As aerospace suppliers soon found that ISO 9001 (1994) did not address the specific requirements of their customers, including the DoD, NASA, FAA, and commercial aerospace companies including Boeing, Lockheed Martin, Northrop Grumman, GE Aircraft Engines and Pratt & Whitney, they developed AS9000, based on ISO 9001, to provide a specific quality management standard for the aerospace industry. Prior to the adoption of an aerospace specific quality standard, various corporations typically used ISO 9001 and their own complementary quality documentation/requirements, such as Boeing's D1-9000 or the automotive Q standard. This created a patchwork of competing requirements that were difficult to enforce and/or comply with. The major American aerospace manufacturers collaborated to develop a unified quality standard based on ISO 9001:1994, which led to the creation of AS9000. Following its release, companies like Boeing discontinued their previous quality supplements in favor of complying with AS9000.
Actin-binding proteins (also known as ABPs) are proteins that bind to actin. This may mean ability to bind actin monomers, or polymers, or both. Many actin-binding proteins, including α-actinin, β-spectrin, dystrophin, utrophin and fimbrin, do this through the actin-binding calponin homology domain. This is a list of actin-binding proteins in alphabetical order. 25kDa 25kDa ABP from aorta 30akDA 30bkDa 34kDA 45kDa 110 kD dimer ABP 110 kD (Drebrin) p53 p58gag p185neu p116rip a-actinin Abl ABLIM Actin-Interacting MAPKKK Ssk2p ABP120 ABP140 Abp1p ABP280 (Filamin) ABP50 (EF-1a) Acan 125 (Carmil) ActA Actibind Actin Actinfilin Actinogelin Actin-regulating kinases Actin-Related Proteins Actobindin Actolinkin Actopaxin Actophorin Acumentin (= L-plastin) Adducin ADF/Cofilin Adseverin (scinderin) Afadin AFAP-110 Affixin Aginactin AIP1 Aldolase Angiogenin Anillin Annexins Aplyronine Archvillin (isoform of Supervillin) Arginine kinase Arp2/3 complex Band 4.1 Band 4.9 (Dematin) b-actinin b-Cap73 Bifocal Bistramide A BPAG1 Brevin (Gelsolin)
Sources: en.wikipedia.org
No. It is an investigational compound without approved therapeutic indications. It is sold for research purposes only in many jurisdictions.
Sports authorities prohibit it because it is not approved for human use and has potential performance-enhancing effects. It appears on anti-doping lists under non-approved or metabolic modulator categories.
Detection usually uses liquid chromatography-tandem mass spectrometry. The method targets the parent compound or its metabolites in urine or blood.
Legality depends on the country and the intended use. In many places it is sold as a research chemical, but sports and medicine regulations restrict it.