Everything below concerns WADA. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Updated 2026-04-02. Numbers and descriptions here follow the published literature rather than marketing material.
Identity and purity of SR9009 samples are usually checked with chromatographic and spectrometric methods. High-performance liquid chromatography can separate the compound from related impurities, while mass spectrometry provides molecular mass confirmation. Nuclear magnetic resonance spectroscopy may be used for structural verification in research settings. No single method proves biological activity, and certificates of analysis should be reviewed alongside raw data. Independent testing is often needed because online products vary widely.
SR9009 stability depends on temperature, moisture, light, and solvent. Solid material is generally kept cool and dry, while solutions may require protection from repeated warming and cooling. Degradation can appear as color changes, precipitate, or new chromatographic peaks. Researchers should follow supplier instructions and their own stability data. Long-term storage conditions for human use have not been established because the compound lacks approved clinical formulation.
SR9009 is supplied as a solid research chemical, often in milligram quantities. Laboratories typically weigh it in a controlled environment because fine powders can disperse. Stock solutions are commonly prepared in dimethyl sulfoxide and stored in small aliquots to reduce freeze-thaw cycles. Personal protective equipment and chemical fume hoods are standard when handling unknown or potent compounds. These practices address laboratory safety rather than human use.
Preclinical reports describe effects on exercise endurance, mitochondrial content, and lipid profiles in rodents, but these findings come from specific experimental conditions. Many studies use high doses or delivery methods that may not translate directly to human use. SR9009 has been reported to have low oral bioavailability and a short half-life, which complicates interpretation of oral dosing studies. It is not established as safe or effective for any indication. Literature discussions often separate its pharmacological mechanism from unverified claims made in fitness and supplement markets.
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.
| Property | Value | Notes |
|---|---|---|
| Synonyms | SR9009; Stenabolic | Stenabolic is an informal name |
| Common form | Crystalline powder | Supplied in milligram to gram quantities |
| Long-term storage | -20 °C, desiccated, protected from light | Reduces degradation |
| Detection technique | LC-MS/MS | Common in anti-doping and research analysis |
| Regulatory status | Prohibited in sport by WADA | Not approved for human therapeutic use |
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 often grouped with compounds studied for circadian and metabolic regulation rather than with classical anabolic steroids. Its interactions with nuclear receptors differ from those of androgen receptor ligands, and its proposed mechanisms involve transcriptional control rather than direct hormone signaling. Some sources classify it as a metabolic modulator because of observed effects on energy utilization. The distinction matters for regulation and for interpreting research results across different compound classes.
SR9009 is a synthetic small molecule developed as a REV-ERB agonist. It binds to REV-ERBα and REV-ERBβ, nuclear receptors that help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, the compound alters lipid and glucose handling and influences skeletal muscle oxidative capacity. Its exact effects in humans remain largely uncharacterized because controlled clinical trials have not been reported. The molecule is frequently described in preclinical literature as a metabolic modulator.
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.
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.
Narrated by Tim Pigott-Smith, produced by Patrick Uden, directed by Sheila Hayman, made by Uden Associates 28 August A Short History of the Future: Spaceship, how space ships were viewed at cinema, and that the US space programme was largely started by Wernher von Braun, when making documentary programmes at Walt Disney; the American public needed to be convinced of the possibilities of space travel - as it would be publicly funded; Jesco Von Puttkamer of NASA; technology historical writer Frederick I. Ordway III; von Braun had first attempted a rocket launch in 1937, but it exploded; on 3 October 1942, his first successful rocket was the first man-made supersonic craft; there were 3,165 V-2 successful launches during the war; much 1950s popular space diagrams were drawn by Chesley Bonestell, which drew the attention of Walt Disney and producer Ward Kimball, who subsequently made the 1955 television episodes Man in Space and Man and the Moon, featuring Wernher von Braun, where von Braun demonstrated his XR-1 craft; health effects of space were demonstrated by former Luftwaffe fighter pilot and physicist Heinz Haber, later a well-known German television presenter; Star Trek: The Original Series was not popular when first shown, but was hugely popular after 1972 when it was repeated; consequently, the first space shuttle was named Enterprise, and when the shuttle was displayed in California on 17 September 1976, it was attended by the full cast of Star Trek, with the theme music also being played; Beverly Thurmond, NASA food scientist; Laura Louviere of NASA.
NMR spectroscopy has been utilized for the analysis of biological samples since the 1980s, and can be used as an effective technique for the identification and quantification of both known and unknown metabolites. For details on the principles of this technique, see NMR spectroscopy. In pharmacometabolomics analyses, NMR is advantageous because minimal sample preparation is required. Isolated patient samples typically include blood or urine due to their minimally-invasive acquisition, however, other fluid types and solid tissue samples have also been studied with this approach. Due to the minimal preparation of samples before analysis, samples can be potentially fully recovered following NMR analysis (If samples are kept refrigerated to avoid degradation). This permits samples to be repeatedly analysed with extremely high levels of reproducibility, as well as maintaining precious patient samples for an alternative analysis. The high reproducibility and precision of NMR, coupled with relatively fast processing time (greater than 100 samples per day), makes this process a relatively high-throughput form of sample analysis. One disadvantage of this technique is the relatively poor metabolite detection sensitivity compared to MS-based analysis, leading to a requirement for greater initial sample volume. Furthermore, the initial instrument costs are extremely high, for both NMR and MS equipment.
The terms Second Cold War, Cold War II, and New Cold War have been used by scholars and journalists to describe heightened geopolitical tensions in the 21st century post–Cold War era, usually between the United States and NATO on one side and Russia or China (or both) on the other. Some commentators have used the terms as a comparison to the original Cold War, while others have discouraged their use to refer to any ongoing tensions. In the 20th century, the terms were previously referred to one of later phases of the original Cold War. In the early post-Cold War era, the terms were used sparingly and variously for past predictions. Over the years, the terms have been increasingly used to describe the United States's and NATO's heightened tensions with Russia, which is regarded as the successor state to the Soviet Union, which led the Eastern Bloc during the original Cold War. However, such use to describe the tensions between NATO and Russia or between the US and Russia, especially in relations to the Russo-Ukrainian war, has been criticised. When the terms have been used to describe the US's heightened tensions with China, which has been a communist state since the Chinese Civil War concluded in 1949 with the Communist victory, the context has been often used to criticise foreign policies of the US president Donald Trump. The terms have been sometimes used to describe tensions in multilateral relations, including China–Russia relations, or in the context of international conflicts.
==== 10 Man Operational Ration Pack ==== The UK also fields a larger pack of rations intended to feed ten soldiers for 24 hours from centralised but basic preparation; generally similar in content to the single issue ORP but tending to contain larger quantities of food in cylindrical tin cans to be divided up on preparation, rather than individual retort pouches or packets. Even dry materials like sugar or biscuits are often packed in these cans. They contain ingredients for baking bread and tinned food, including vegetables, corned beef and sausages in lard. Also included are chocolate, pre-cooked chicken or beef in gravy and soya mince. Ten boxed one-man ORPs are supplied in larger boxes identical in shape to the single ten-man pack.
Well-being is what is intrinsically good for a person. Also called welfare and quality of life, it is a measure of how well life is going for someone. In the broadest sense, it covers the balance of all positive and negative aspects of a person's life. More narrowly, it refers only to positive degrees and contrasts with ill-being, which denotes negative ones. In this sense, well-being is what egoists typically seek for themselves and altruists aim to enhance in others, serving as a central goal of many individual and societal endeavors. Researchers discuss different types of well-being by how they are measured, who they belong to, and which domain of life they affect. Subjective well-being refers to how a person feels about and evaluates their life. Objective well-being encompasses factors that can be assessed from an external perspective, such as health, income, and security. Individual well-being concerns the quality of life of a particular person, whereas community well-being measures how well a group of people functions and thrives. Forms of well-being belonging to specific domains of life include physical, psychological, emotional, social, and economic well-being. Theories of well-being aim to identify its essential features. Hedonism argues that well-being ultimately depends on the balance of pleasure over pain. Desire theories hold that the satisfaction of desires is the source of well-being. Objective list theories assert that a combination of diverse elements is responsible for well-being.
Sources: en.wikipedia.org
== Production and development == Mulligan Stew was developed in early 1971 by the USDA Extension Service, and filmed by the USDA Motion Picture Service (which for many years prior produced educational cinematic films and TV programs for public viewing). Mulligan Stew was developed based on plan and design proposals by Developmental Committees, Iowa State University Extension Service 4-H Nutrition Television Programs. The Expanded Food and Nutrition Education Program (EFNEP) provided a grant to produce the series. (4-H is the official youth outreach and development program of the land-grant universities' Cooperative Extension Services and USDA.) The target audience of the program was older elementary school students, fourth through sixth grade. Eleanor Wilson, the national 4-H TV coordinator at the time, was tapped to be the series' technical advisor. Wilson subcontracted with Iowa State University to develop an outline of educational concepts for the series. USDA Extension then hired Ira Klugerman to direct the series. Klugerman, who came from a background of children's television at WQED in Pittsburgh, Pennsylvania, came up with the title and general treatment for the series. V. "Buddy" Renfro was the credited producer. Production began on location in southeast Washington, DC in 1971 (the opening sequence was filmed at RFK Stadium). Other filming locations included major production partner Michigan State University's home base of Lansing, Michigan, and on location for one episode at Johnson Space Center in Houston.
They developed technologies for boat building, allowing for extensive travel and trade, as well as, elaborate tools utilizing lithics, drift wood, and animal resources for fishing and the hunting of sea mammals. Aleutian craftsmanship in basketry and weaving using rye beach grass is also particularly noted.
==== Leukemia ==== The Gβγ subunit has been shown to activate a Rho guanine nucleotide exchange factor (RhoGef) gene PLEKHG2 which is upregulated in a number of leukemia cell lines and mouse models of leukemia. Lymphocyte chemotaxis as a result of Rac and CDC42 activation as well as actin polymerization is believed to be regulated by the Gβγ activated RhoGef. Therefore, a drug inhibiting the Gβγ could play a role in the treatment of leukemia.
equilibrium The condition of a system in which all competing influences are balanced. Chemical equilibrium is the state in which the concentrations of the reactants and products in a reacting system have stopped changing in time.
Sources: en.wikipedia.org
== Board of Schools (BOS) == In 1949, ASCP stablished the Board of Schools (BOS) for accrediting medical technologist programs and published the Essentials of an Acceptable MT School. In 1973, following antitrust litigation by the United States Department of Education, the ASCP Board of Schools became the independent National Accrediting Agency for Clinical Laboratory Sciences.
== Career == At the institute, later Rockefeller University, he worked as an Assistant for Dr. D.W. Woolley on a dinucleotide growth factor he discovered in graduate school and on peptide growth factors that Woolley had discovered earlier. These studies led to the need for peptide synthesis and, eventually, to the idea for solid phase peptide synthesis (SPPS) in 1959. In 1963, he was sole author of a classic paper in the Journal of the American Chemical Society in which he reported a method he called "solid phase peptide synthesis". This article is the fifth most cited paper in the journal's history. In the mid-60s Dr. Merrifield's laboratory first synthesized bradykinin, angiotensin, desamino-oxytocin and insulin. In 1969, he and his colleague Bernd Gutte announced the first synthesis of the enzyme ribonuclease A. This work proved the chemical nature of enzymes. Dr. Merrifield's method greatly stimulated progress in biochemistry, pharmacology and medicine, making possible the systematic exploration of the structural basis of the activities of enzymes, hormones and antibodies. The development and applications of the technique continued to occupy his laboratory, where he remained active at the bench until recently. In 1993, Jeffrey I. Seeman published Life during a Golden Age of Peptide Chemistry, Merrifield's autobiography, in the series "Profiles, Pathways, and Dreams" for the American Chemical Society. He received the Association of Biomolecular Resource Facilities Award for outstanding contributions to Biomolecular Technologies in 1998.
Scientists have produced a wide range of possible maximum running speeds for Tyrannosaurus: mostly around 9 meters per second (32 km/h; 20 mph), but as low as 4.5–6.8 meters per second (16–24 km/h; 10–15 mph) and as high as 20 meters per second (72 km/h; 45 mph). According to John Hutchinson and colleagues, Tyrannosaurus was unlikely to run fast . A 2002 report used a mathematical model (validated by applying it to three living animals: alligators, chickens, and humans; and eight more species, including emus and ostriches) to gauge the leg muscle mass needed for fast running (over 40 km/h or 25 mph). Scientists who think that Tyrannosaurus was able to run point out that hollow bones and other features that would have lightened its body may have kept adult weight to a mere 4.5 metric tons (5.0 short tons) or so, or that other animals like ostriches and horses with long, flexible legs are able to achieve high speeds through slower but longer strides. Proposed top speeds exceeded 40 kilometers per hour (25 mph) for Tyrannosaurus, but were deemed infeasible because they would require exceptional leg muscles of approximately 40–86% of total body mass. Even moderately fast speeds would have required large leg muscles. If the muscle mass was less, only 18 kilometers per hour (11 mph) for walking or jogging would have been possible.
=== Pigment === It has been reported in many cases that fairer individuals who have less melanin pigment show more dermal DNA photodamage, infiltrating neutrophils, keratinocyte activation, IL-10 expression, and increased MMPs after UV exposure. Therefore, the distribution of melanin protects from sunburn, photoaging, and carcinogenesis by absorbing and scattering UV rays, covering the skin's lower layers and protecting them from the radiation.
=== Imaging === Cartilage does not absorb X-rays under normal in vivo conditions, but a dye can be injected into the synovial membrane that will cause the X-rays to be absorbed by the dye. The resulting void on the radiographic film between the bone and meniscus represents the cartilage. For in vitro X-ray scans, the outer soft tissue is most likely removed, so the cartilage and air boundary are enough to contrast the presence of cartilage due to the refraction of the X-ray.
Sources: en.wikipedia.org
Laboratories commonly use liquid chromatography coupled with mass spectrometry to detect SR9009. The method can identify the compound and estimate concentration in a sample. Detection limits depend on the matrix and instrument.
Research-grade purity indicates a supplier's measured percentage of the intended compound. It does not guarantee safety, sterility, or suitability for human consumption. Buyers should request a certificate of analysis with chromatograms and test methods.
Sports regulators prohibit SR9009 because it is a non-approved substance with potential performance-altering effects. Its presence can be detected in anti-doping testing. Athletes are responsible for substances found in their samples.
SR9009 is a synthetic REV-ERB agonist used in laboratory research. It is not an approved drug, and its effects in humans are not well characterized. It is often sold as a research chemical under the name Stenabolic.