The short version of research chemical fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-06-07 and is reviewed periodically as new material appears.
In laboratory settings, SR9009 is commonly identified by its molecular structure and its interaction with REV-ERB receptors. Vendors may list it under synonyms such as Stenabolic or REV-ERB agonist, but those names do not define purity or identity. Analytical confirmation typically uses high-performance liquid chromatography with ultraviolet detection or liquid chromatography–mass spectrometry. A reference standard is needed to compare retention time and mass spectrum, because the compound can be confused with related research chemicals.
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 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.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white solid | Visual inspection is not sufficient for identity. |
| Solubility | Soluble in DMSO and ethanol | Low solubility in water. |
| Typical storage | -20 °C, desiccated, dark | Protect from repeated temperature changes. |
| Common analytical method | LC-MS or HPLC-UV | Reference standard required for comparison. |
| Common synonyms | SR9009; Stenabolic; REV-ERB agonist | Vendor naming may vary. |
Detection in biological samples can be complicated by rapid metabolism and low circulating concentrations. Some studies report phase I and phase II metabolites, and analytical methods may need to target those species in addition to the parent compound. Immunoassays are not broadly available, so mass spectrometry remains the main confirmatory approach. For anti-doping testing, laboratories look for SR9009 and its metabolites using validated LC-MS methods. Open questions include how long metabolites remain detectable and how different routes of administration alter detection windows.
In laboratory settings, SR9009 is typically characterized by liquid chromatography–mass spectrometry (LC-MS) or high-performance liquid chromatography with ultraviolet detection (HPLC-UV). These methods can confirm identity and estimate purity, but they require reference standards for accurate quantification. Because SR9009 is not a licensed pharmaceutical, no harmonized pharmacopeial monograph exists. Laboratories often validate in-house methods for matrices such as plasma, urine, or cell culture media. Sample preparation may involve protein precipitation or liquid-liquid extraction before analysis.
Physicochemical behavior influences handling. SR9009 is described as a solid with limited aqueous solubility, so organic solvents such as dimethyl sulfoxide or ethanol are common in research stock solutions. Aqueous dilution can produce precipitates if the organic content is too low. Light, heat, and repeated freeze-thaw cycles may affect stability. Storage recommendations usually specify a desiccated freezer environment protected from light, but exact stability data depend on the formulation and matrix.
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.
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.
==== United States ==== In the United States, tianeptine is not considered by the Drug Enforcement Administration as a controlled substance or analogue thereof. However, its use in dietary supplements and food is unlawful. The Food and Drug Administration (FDA) has issued warnings, as recently as January 2024, about the dangers of recreational tianeptine use and the risks posed by adulterated dietary supplements containing undeclared tianeptine. On 6 April 2018, Michigan became the first US state to outlaw tianeptine sodium, classifying it as a schedule II controlled substance. The scheduling of tianeptine sodium is effective 4 July 2018. On 1 November 2019, Tianeptine became a Schedule II controlled dangerous substance as classified within the Uniform Controlled Dangerous Substances Act of the state of Oklahoma. On 15 March 2021, Alabama outlawed tianeptine, initially classifying it as a schedule II controlled substance. It was later reclassified as a schedule I controlled substance on 14 November 2021. On 1 July 2022, Tennessee outlawed tianeptine and adds "any salt, sulfate, free acid, or other preparation of tianeptine, and any salt, sulfate, free acid, compound, derivative, precursor, or preparation thereof that is substantially chemically equivalent or identical with tianeptine", classifying it as a schedule II controlled substance. On 22 December 2022, Ohio outlawed tianeptine, classifying it as a schedule I controlled substance with Ohio Governor Mike DeWine referencing the widespread availability of the chemical there as "gas-station heroin".
Xi said "China keeps its door wide open, welcomes American companies wanting to invest and do business there" and hoped that "Chinese companies are treated fairly here in the US". Xi said "Both China and the United States are leading nations in artificial intelligence. We have both the capability and responsibility to develop and manage AI for good, and ensure that the development of AI is always under human control and serves the well-being of the people". He called for cooperation on trade. He said "We do not need to avoid mentioning competition, but our competition should be a healthy one and should be kept within bounds" and that "It should be a race of catching up with one another, not a wrestle in which one either wins or loses. China and the United States must hold the line of no conflict and no confrontation between us". Xi said the militaries "should maintain regular dialog and improve mechanisms for crisis communication and prevention. The 'Thucydides trap' can be overcome". Xi said Chinese and US soldiers have fought "shoulder to shoulder against fascist aggression" and that "Chinese people have never forgotten that part of history, nor have the American people". He announced an invitation for 100,000 young Americans to study in exchange programmes in China over the next five years. He also announced two pandas, Ping Ping and Fu Shuang, would be sent to Zoo Atlanta.
Pilonidal cysts can recur, and do so more frequently if the surgical wound is sutured in the midline, as opposed to away from the midline, which obliterates the natal cleft and removes the focus of shearing stress. An incision lateral to the intergluteal cleft is therefore preferred, especially given the poor healing of midline incisions in this region. Minimally invasive techniques with no wound and rapid return to full activities have been reported but await double-blind randomized trials. Another technique is to treat the pilonidal sinus with fibrin glue. This technique is of unclear benefit as of 2017 due to insufficient research. The evidence for any treatment is of low quality, and care must be taken not to overinterpret any study in this field. Since the 2010s, several minimally invasive techniques have been developed to minimize the impact of surgery on patients and achieve less pain and shorter recovery times. In some cases, the wounds are left open after surgery to heal naturally instead of being closed with stitches. There are a lot of different dressings and topical agents (creams or lotions) that are available to help these open wounds heal. A 2022 systematic review brought together evidence from 11 studies that compared dressings and topical agents for treating open wounds after surgical treatment for pilonidal sinus of the buttocks.
Due to backstreaming, oil diffusion pumps are not suitable for use with highly sensitive analytical equipment or other applications which require an extremely clean vacuum environment, but mercury diffusion pumps may be in the case of ultra high vacuum chambers used for metal deposition. Often cold traps and baffles are used to minimize backstreaming, although this results in some loss of pumping speed. The oil of a diffusion pump cannot be exposed to the atmosphere when hot. If this occurs, the oil will oxidise and has to be replaced. If a fire occurs, the smoke and residue may contaminate other parts of the system.
Sources: en.wikipedia.org
Churchill is a man with an out-of-date political idea—that of the European balance of power. It no longer belongs to the sphere of realities. And yet it's because of this superstition that Churchill stirred England up to war. On another occasion he added: Without the Wehrmacht, a "wave would have swept over Europe that would have taken no care of the ridiculous British idea of the balance of power in Europe in all its banality and stupid tradition—once and for all." In fact, Churchill shortly adopted a similar view: Our Russian friends and Allies, he spoke in 1946, most admire strength and least respect military weakness. "For that reason the old doctrine of a balance of power is unsound. We cannot afford … to work on narrow margins, offering temptations to a trial of strength." If the Western Democracies do not stand together "then indeed catastrophe may overwhelm us all." If, however, "the population of the English-speaking Commonwealths be added to that of the United States with all that such co-operation implies in the air, on the sea, all over the globe and in science and in industry, and in moral force, there will be no quivering, precarious balance of power to offer its temptation to ambition or adventure. On the contrary, there will be an overwhelming assurance of security."
It reduces external noise by severing the direct and rigid mechanical link between the relatively noisy diesel engine(s) on the one hand and the propeller shaft(s) and hull on the other. With stealth being of paramount importance to submarines, this is a very significant advantage. It increases the readiness to dive, which is of course of vital importance for a submarine. The only thing required from a propulsion point of view is to shut down the diesel(s). It makes the speed of the diesel engine(s) temporarily independent of the speed of the submarine. This in turn often makes it possible to run the diesel(s) at close to optimal speed from a fuel-efficiency as well as durability point of view. It also makes it possible to reduce the time spent surfaced or snorkeling by running the diesel(s) at maximum speed without affecting the speed of the submarine itself. It eliminates the clutches otherwise required to connect the diesel engine, the electric motor, and the propeller shaft. This in turn saves space, increases reliability and reduces maintenance costs. It increases flexibility with regard to how the driveline components are configured, positioned, and maintained. For example, the diesel no longer has to be aligned with the electric motor and propeller shaft, two diesels can be used to power a single propeller (or vice versa), and one diesel can be turned off for maintenance as long as a second is available to provide the required amount of electricity.
Ketone bodies can be used as fuels, yielding 22 ATP and 2 GTP molecules per acetoacetate molecule when oxidized in the mitochondria. Ketone bodies are transported from the liver to other tissues, where acetoacetate and beta-hydroxybutyrate can be reconverted to acetyl-CoA to produce reducing equivalents (NADH and FADH2), via the citric acid cycle. Ketone bodies cannot be used as fuel by the liver, because the liver lacks the enzyme β-ketoacyl-CoA transferase, also called thiolase. Acetoacetate in low concentrations is taken up by the liver and undergoes detoxification through the methylglyoxal pathway which ends with lactate. Acetoacetate in high concentrations is absorbed by cells other than those in the liver and enters a different pathway via 1,2-propanediol. Though the pathway follows a different series of steps requiring ATP, 1,2-propanediol can be turned into pyruvate.
=== Errors and reliability === The reliability of the results can be improved by lengthening the testing time. For example, if counting beta decays for 250 minutes is enough to give an error of ± 80 years, with 68% confidence, then doubling the counting time to 500 minutes will allow a sample with only half as much 14C to be measured with the same error term of 80 years. Radiocarbon dating is generally limited to dating samples no more than 50,000 years old, as samples older than that have insufficient 14C to be measurable. Older dates have been obtained by using special sample preparation techniques, large samples, and very long measurement times. These techniques can allow measurement of dates up to 60,000 and in some cases up to 75,000 years before the present. Radiocarbon dates are generally presented with a range of one standard deviation (usually represented by the Greek letter sigma as 1σ) on either side of the mean. However, a date range of 1σ represents only a 68% confidence level, so the true age of the object being measured may lie outside the range of dates quoted. This was demonstrated in 1970 by an experiment run by the British Museum radiocarbon laboratory, in which weekly measurements were taken on the same sample for six months. The results varied widely (though consistently with a normal distribution of errors in the measurements), and included multiple date ranges (of 1σ confidence) that did not overlap with each other.
Bate-Smith, E. C. (Sep 1954). "Leuco-Anthocyanins". Biochem. J. 58 (1): 122–125. doi:10.1042/bj0580122. PMC 1269852. PMID 13198862. Pecket, R.C. Constituents of Leaf Extracts ... , New Phytologist 1959 Oct; 58(2) (retrieved 27 sept 2010 http://onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.1959.tb05350.x/pdf ) Stecher, G. and Bonn, G. K., Phytochemical Analysis, Chromatography, Elsevier Science, E. Heftmann (ed), Amsterdam, pp. 1050. ISBN 0-444-51108-3 (2004) (retrieved via google books 9/27/2010)
Sources: en.wikipedia.org
===== OECD ===== During an address to Argentine businesspeople in October 2024, Peña stated that one of the principal goals of his government is for Paraguay to become a member of the Organisation for Economic Co-operation and Development (OECD). He explained that, to achieve this goal, it is essential to continue promoting development in key areas such as education and security.
== Pharmacokinetics == With the once-monthly formulation of paliperidone palmitate, the time to peak is 13 days and the elimination half-life is 25 to 49 days; for the 3-month formulation, the time to peak is 30 to 33 days and the half-life is 84 to 95 days (deltoid muscle) or 118 to 139 days (gluteal). These data come from a 2021 review whose authors included employees of Janssen Research & Development, the manufacturer of paliperidone palmitate. The peak-to-trough ratio of paliperidone palmitate at steady state ranges from 1.56 to 1.70 with the 1- and 3-month formulations. No pharmacokinetic data for the 6-month formulation has been released as of January 2021. However, a 2025 case report described a patient who still had measurable plasma paliperidone concentrations in the low therapeutic range 886 days (2.5 years) after her last injection, indicating that in some individuals the drug may be released from the depot far longer than the predicted half‑life. The pharmacokinetic profile was originally derived from a 2009 pooled analysis of 18,530 paliperidone concentration samples from 1,795 subjects across six Phase I trials and five Phase II and III trials funded by Johnson & Johnson Pharmaceutical Research and Development, LLC. Invega Sustenna, Invega Trinza, and Invega Hafyera all utilize nanoparticle technology. The NanoCrystal® technology used in all three long-acting paliperidone products is manufactured by Alkermes plc.
=== Celebrex intellectual property settlement (2012) === Brigham Young University (BYU) said a professor of chemistry, Dr. Daniel L. Simmons, discovered an enzyme in the 1990s that led towards development of Celebrex. BYU was originally seeking a 15% royalty on sales, equating to $9.7 billion. A research agreement had been made between BYU and Monsanto, whose pharmaceutical business was later acquired by Pfizer, to develop a better aspirin. The enzyme Dr. Simmons claims to have discovered would induce pain and inflammation while causing gastrointestinal problems and Celebrex is used to reduce those issues. A six-year battle ensued because BYU claimed that Pfizer did not give Dr. Simmons credit or compensation, while Pfizer claimed that it had met all obligations regarding the Monsanto agreement. In May 2012, Pfizer settled the allegations, agreeing to pay $450 million.
Technologies based upon the polymerase chain reaction (PCR) method will become nearly ubiquitous gold standards of diagnostics of the near future, for several reasons. First, the catalog of infectious agents has grown to the point that virtually all of the significant infectious agents of the human population have been identified. Second, an infectious agent must grow within the human body to cause disease; essentially it must amplify its own nucleic acids to cause a disease. This amplification of nucleic acid in infected tissue offers an opportunity to detect the infectious agent by using PCR. Third, the essential tools for directing PCR, primers, are derived from the genomes of infectious agents, and with time those genomes will be known if they are not already. Thus, the technological ability to detect any infectious agent rapidly and specifically is currently available. The only remaining blockades to the use of PCR as a standard tool of diagnosis are in its cost and application, neither of which is insurmountable. The diagnosis of a few diseases will not benefit from the development of PCR methods, such as some of the clostridial diseases (tetanus and botulism). These diseases are fundamentally biological poisonings by relatively small numbers of infectious bacteria that produce extremely potent neurotoxins. A significant proliferation of the infectious agent does not occur, which limits the ability of PCR to detect the presence of any bacteria.
Iraq, which has this dynamic combination and much else besides, has not until recently been very much regarded as a power. But with the new discussions in OPEC, the ending of the Kurdistan war and the new round of fighting in Lebanon, its political voice is being heard more and more. The Baghdad regime is the first oil-producing government to opt for 100-per-cent nationalisation, a process completed with the acquisition of foreign assets in Basrah last December. It was the first to call for the use of oil as a political weapon against Israel and her backers. It gives strong economic and political support to the 'Rejection Front' Palestinians who oppose Arafat's conciliation and are currently trying to outface the Syrians in Beirut. He argued that the means through which the Baathist regime rose to power were similar to that of Iran: having crushed any political dissent and notions of an independent Kurdish state. He stated that the Ba'ath party "point to efforts made by the party press to stimulate criticism of revolutionary shortcomings" but that these "fall rather short of permitting any organised opposition". He claimed that Iraq defended this by claiming "that the country is surrounded by enemies and attacked by imperialist intrigue" but that this had led to the repression of Kurdish nationalists.
Sources: en.wikipedia.org
Liquid chromatography–mass spectrometry is common for identity and purity checks. High-performance liquid chromatography with ultraviolet detection can also be used. Both methods require a suitable reference standard.
The solid is usually kept desiccated at -20 °C or lower and protected from light. Stock solutions are aliquoted to limit freeze–thaw cycles. Aqueous solutions are not generally recommended for long-term storage.
Laws differ by country and by intended use. It is not an approved medicine, and many vendors sell it as a research chemical. Purchasers are responsible for confirming local restrictions.
No. It is an investigational compound without approved therapeutic indications. It is sold for research purposes only in many jurisdictions.