The short version of LC-MS/MS fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2025-12-20. Anything still debated is marked as such rather than presented as settled.
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.
REV-ERB proteins typically suppress gene expression by recruiting corepressor complexes to DNA response elements. SR9009 binds these receptors and strengthens that repressive action in cell-based assays. Studies in rodents have reported changes in lipid handling, mitochondrial function, and exercise capacity after treatment. Such findings are often cited as evidence for metabolic effects, but species differences and limited pharmacokinetic data make direct translation to humans uncertain. Researchers continue to examine which effects are robust and which depend on specific experimental conditions.
SR9009 is frequently discussed alongside other REV-ERB ligands, including synthetic agonists and natural heme-related molecules. Its selectivity for REV-ERB over related nuclear receptors has been measured in binding and reporter assays, though off-target activity at higher concentrations is possible. The compound is prohibited in sport by the World Anti-Doping Agency, and it is not approved for any medical use in major jurisdictions. Products sold online may be labeled as research chemicals, and their identity and purity are not guaranteed by regulatory review.
| 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 |
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.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. These receptors help regulate circadian rhythms, lipid metabolism, and inflammatory gene expression. In cell and animal experiments, SR9009 alters transcription of clock-controlled genes and metabolic pathways. The compound is not a hormone and does not resemble classical steroid structures. Its activity depends on binding to the ligand-binding domain of REV-ERB, where it can modify corepressor recruitment.
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.
Handling practices for SR9009 focus on minimizing degradation and contamination. The solid is generally stored desiccated at or below -20 °C, protected from light and moisture. Stock solutions are often prepared in dimethyl sulfoxide or ethanol, then aliquoted to avoid repeated freeze–thaw cycles. Aqueous solubility is low, so formulations for animal studies may require cosolvents or suspending agents. Personnel should follow institutional chemical safety procedures, because toxicological data for humans are incomplete.
Regulatory status varies by country and intended use. Major drug agencies have not granted marketing authorization for SR9009 as a medicine, and it is not listed as a controlled substance in many jurisdictions. It is often sold as a research chemical, a category that may fall outside pharmaceutical manufacturing rules. Buyers should verify local laws and supplier documentation, including certificates of analysis. The lack of standardized quality controls raises concerns about identity, purity, and actual content in products marketed online.
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.
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.
{\displaystyle {\bar {a}}=\alpha a~;~~{\bar {c}}:=\alpha c~;~~{\bar {d}}:=\alpha ^{2}Rd~;~~\alpha :=\left({\frac {4E^{*}}{3\pi \Delta \gamma R^{2}}}\right)^{\frac {1}{3}}~;~~{\bar {A}}:=\pi c^{2}~;~~{\bar {F}}={\frac {F}{\pi \Delta \gamma R}}}
The Canada Games is the country's highest-level youth multi-sport event held every two years. Canada has enjoyed success both at the Winter Olympics and the Summer Olympics—particularly the Winter Games as a "winter sports nation". Canada has hosted high-profile international sporting events such as the 1976 Summer Olympics, the 1988 Winter Olympics, the 2010 Winter Olympics, multiple Commonwealth Games, the 2015 FIFA Women's World Cup, the 2015 Pan American Games and 2015 Parapan American Games. The country co-hosted the 2026 FIFA World Cup alongside Mexico and the United States.
==== East Africa ==== In October 1925, Jung embarked on his most ambitious expedition, the "Bugishu Psychological Expedition" to East Africa. He was accompanied by his English friend, "Peter" Baynes, and an American associate, George Beckwith. On the voyage to Africa, they became acquainted with an English woman named Ruth Bailey, who joined their safari a few weeks later. The group traveled through Kenya and Uganda to the slopes of Mount Elgon, where Jung hoped to increase his understanding of "primitive psychology" through conversations with the culturally isolated residents of that area. Later, he concluded that the major insights he had gleaned had to do with himself and the European psychology in which he had been raised. One of Jung's most famous proposed constructs is kinship libido. Jung defined this as an instinctive feeling of belonging to a particular group or family and believed it was vital to the human experience, and used this as an endogamous aspect of the libido and what lies within the family. This is similar to a Bantu term called Ubuntu that emphasizes humanity and almost the same meaning as kinship libido, which is, "I am because you are."
Mary Engle Pennington (October 8, 1872 – December 27, 1952) was an American bacteriological chemist, food scientist and refrigeration engineer. She was an innovator in the preservation, handling, storage, and transportation of perishable foods and the first female lab chief at the U.S. Food and Drug Administration. She was awarded 5 patents (3 of which were shared), received the Notable Service Medal from President Herbert Hoover, and received the Garvin-Olin Medal from the American Chemical Society. She is an inductee of the National Inventor's Hall of Fame, the National Women's Hall of Fame and the ASHRAE Hall of Fame.
Sources: en.wikipedia.org
Paper-based microfluidics are microfluidic devices that consist of a series of hydrophilic cellulose or nitrocellulose fibers that transport fluid from an inlet through the porous medium to a desired outlet or region of the device, by means of capillary action. This technology builds on the conventional lateral flow test which is capable of detecting many infectious agents and chemical contaminants. The main advantage of this is that it is largely a passively controlled device unlike more complex microfluidic devices. Development of paper-based microfluidic devices began in the early 21st century to meet a need for inexpensive and portable medical diagnostic systems.
Michael Howard Wigler (born September 3, 1947, in New York) is an American molecular biologist who has directed a laboratory at Cold Spring Harbor Laboratory since 1978 and is a member of the National Academy of Sciences. He is best known for developing methods to genetically engineer animal cells and his contributions to cancer, genomics and autism genetics.
=== In electronics / electricity === PVDF is commonly used as insulation on electrical wires, because of its combination of flexibility, low weight, low thermal conductivity, high chemical corrosion resistance, and heat resistance. Most of the narrow 30-gauge wire used in wire wrap circuit assembly and printed circuit board rework is PVDF-insulated. In this use the wire is generally referred to as "Kynar wire", from the trade name. The piezoelectric properties of PVDF are exploited in the manufacture of tactile sensor arrays, inexpensive strain gauges, and lightweight audio transducers. Piezoelectric panels made of PVDF are used on the Venetia Burney Student Dust Counter, a scientific instrument of the New Horizons space probe that measures dust density in the outer Solar System. PVDF is the standard binder material used in the production of composite electrodes for lithium-ion batteries. Solution of PVDF 1−2% by mass in N-methyl-2-pyrrolidone (NMP) is mixed with an active lithium storage material such as graphite, silicon, tin, LiCoO2, LiMn2O4, or LiFePO4 and a conductive additive such as carbon black or carbon nanofibers. This slurry is cast onto a metallic current collector, and the NMP is evaporated to form a composite or paste electrode. PVDF is used because it is chemically inert over the potential range used and does not react with the electrolyte or lithium.
For services to the Arts and to the community in Southend-on-Sea, Essex. Dr. Alasdair Cunningham Bruce. Boston Spa Renewed Programme Manager. For services to Libraries. Christopher John Paul Bryant. Director of Tournaments and Events, Football Association. For services to Sport. Jennifer Sheridan Bryer. Teacher, Pony Club. For services to Horse Riding. Peter George Buchan. Managing Director, Shipping, Nuclear Transport Solutions. For services to the Nuclear Industry and to Young People. Khumi Tonsing Burton, JP, DL. For services to the community in Manchester and Cheshire. Ronald Butler. Policy Adviser, Department for Work and Pensions. For services to Disadvantaged People. Carrie Byrom. Director, Stable Lives. For services to Mental Health and the community in North West England. David Corrie Calvert. President, Langholm Town Band. For services to the community in Langholm, Dumfries. Carl Campbell. Founder and Artistic Director, CCDC7. For services to African Caribbean Dance Education and Culture. Catriona Yvonne Fiona Campbell. UK&I Chief Technology and Innovation Officer, EY. For services to Technology and Innovation. George Alan Carney. Executive Officer, Department for Education. For Public Service. Professor Kathryn Janice Carruthers. Professor of French Linguistics, Queen's University Belfast. For services to Modern Languages. Kathryn Melanie Keele Caton. Founder and Managing Director, Brighton Gin. For services to Trade and to the community in Brighton. Amanda Chadwick. Founder and Trustee, Pyjama Fairies. For services to Children in Hospital. Edward Kay Kiu Chan.
The Association for Diagnostics & Laboratory Medicine (formerly known as the American Association for Clinical Chemistry or AACC) is a global scientific society dedicated to clinical laboratory science and its application to healthcare. ADLM's current president is Octavia M. Peck Palmer, PhD, FAAC, and the association headquarters are located in Washington, D.C. (United States).
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 binds and modulates the nuclear receptors REV-ERBα and REV-ERBβ. It is used in laboratory studies of circadian biology and metabolism, not as an approved medicine. It is also known by the informal name Stenabolic.