Stenabolic raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
Reviewed 2026-07-25. Anything still debated is marked as such rather than presented as settled.
SR9009 is a synthetic small molecule that acts on the nuclear receptors REV-ERBα and REV-ERBβ. These receptors are part of the circadian clock machinery and normally repress transcription of certain target genes. In laboratory research, SR9009 is used as a chemical tool to study how REV-ERB activity influences metabolism, inflammation, and daily biological rhythms. The compound is not an approved medicine, and its effects in humans remain largely uncharacterized. It is often described as an investigational agent rather than a therapeutic product.
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.
Detection of SR9009 in biological samples usually employs liquid chromatography coupled with tandem mass spectrometry. This method can identify the parent compound and sometimes metabolites in urine or blood. Because exposure can be low and clearance may be rapid, sample timing and limits of detection matter. Laboratories validate assays for sensitivity and specificity. Results are interpreted alongside chain-of-custody and quality-control records. Urine is the common matrix for anti-doping analysis, while blood may be used in research settings.
Handling recommendations for SR9009 in a laboratory setting include storing the solid at low temperature, protected from light and moisture. The compound is often dissolved in dimethyl sulfoxide or ethanol for experiments. Solutions should be prepared with appropriate personal protective equipment and disposed of according to local rules. Stability data for long-term storage are limited, so stock solutions are typically kept cold and used within defined periods. Records of preparation date and concentration support reproducibility.
| Property | Value | Notes |
|---|---|---|
| Common name | SR9009 | Also marketed informally as Stenabolic |
| Chemical class | Synthetic REV-ERB agonist | Binds REV-ERBα and REV-ERBβ |
| Molecular formula | C24H30ClN3O4S | Approximate molecular weight 492 g/mol |
| CAS Registry Number | 1379686-30-2 | Identifier for the parent compound |
| Regulatory status | Not approved for human use | Prohibited in sport by WADA |
Laboratory samples of SR9009 are typically supplied as a white to off-white powder. The compound dissolves readily in organic solvents such as dimethyl sulfoxide and ethanol, while its solubility in water is low. Because of this solubility profile, researchers often prepare concentrated stock solutions in an organic solvent before diluting them into aqueous assay buffers. Light exposure, moisture, and repeated freeze-thaw cycles can degrade many small molecules, so handling procedures usually aim to minimize these factors. Purity is commonly checked before use.
Storage conditions for research-grade SR9009 generally involve a freezer at approximately minus twenty degrees Celsius, sometimes lower for long-term preservation. Containers should remain tightly closed and protected from light. Desiccants may be used to limit moisture uptake. Solutions are often stored in aliquots to avoid repeated warming and cooling. Stability data for the compound under various conditions are limited, so laboratories typically follow supplier recommendations and verify performance through periodic analytical checks rather than assuming indefinite stability.
Identity and purity testing for SR9009 commonly uses liquid chromatography coupled with tandem mass spectrometry. This method separates the compound from matrix components and detects it by mass-to-charge transitions, providing sensitive and specific confirmation. Nuclear magnetic resonance spectroscopy can support structural identification, while high-performance liquid chromatography with ultraviolet detection may estimate purity. Because online products labeled as SR9009 may contain other substances or no active compound at all, independent verification is important in research settings. Certificates of analysis are useful but not a substitute for in-house testing.
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.
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.
Nicotinic acid, or niacin, is an organic compound and a vitamer of vitamin B3, an essential human nutrient. It is produced by plants and animals from the amino acid tryptophan. Nicotinic acid is also a prescription medication. Amounts far in excess of the recommended dietary intake for vitamin functions will lower blood triglycerides and low density lipoprotein cholesterol (LDL-C), and raise blood high density lipoprotein cholesterol (HDL-C, often referred to as "good" cholesterol). There are two forms: immediate-release and sustained-release nicotinic acid. Initial prescription amounts are 500 mg/day, increased over time until a therapeutic effect is achieved. Immediate-release doses can be as high as 3,000 mg/day; sustained-release as high as 2,000 mg/day. Despite the proven lipid changes, nicotinic acid has not been found useful for decreasing the risk of cardiovascular disease in those already prescribed a statin drug. A 2010 review had concluded that nicotinic acid was effective as a mono-therapy, but a 2017 review incorporating twice as many trials concluded that prescription nicotinic acid, while affecting lipid levels, did not reduce all-cause mortality, cardiovascular mortality, myocardial infarctions, nor fatal or non-fatal strokes. Prescription nicotinic acid was shown to cause hepatotoxicity and increase risk of type 2 diabetes. Nicotinic acid prescriptions in the United States had peaked in 2009 at 9.4 million, declining to 800 thousand by 2020. In 2023, it was the 288th most commonly prescribed medication in the US, with more than 500,000 prescriptions.
Firefighters hit the demonstrators with powerful water cannons, and the police continued to beat and arrest people. Protesters managed to build a defensible barricade in front of the Dunărea ("Danube") restaurant, which stood until after midnight, but was finally torn apart by government forces. Intense shooting continued until after 03:00, by which time the survivors had fled the streets. Records of the fighting that day include footage shot from helicopters that were sent to raid the area and record evidence for eventual reprisals, as well as by tourists in the high tower of the centrally located InterContinental Hotel, next to the National Theatre and across the street from the university. It is likely that in the early hours of 22 December that the Ceaușescus made their second mistake. Instead of fleeing the city under cover of night, they decided to wait until morning to leave. Ceaușescu must have thought that his desperate attempts to crush the protests had succeeded, because he apparently called another meeting for the next morning. However, before 07:00, his wife Elena received the news that large columns of workers from many industrial platforms (large communist-era factories or groups of factories concentrated into industrial zones) were heading towards the city centre of Bucharest to join the protests. The police barricades that were meant to block access to Piața Universității (University Square) and Palace Square proved useless. By 09:30 University Square was jammed with protesters.
Dextrose monohydrate is the hydrated form of D-glucose, meaning that it is a glucose molecule with an additional water molecule attached. Its chemical formula is C6H12O6 · H2O. Dextrose monohydrate is also called hydrated D-glucose, and commonly manufactured from plant starches. Dextrose monohydrate is used as the predominant type of dextrose in food applications, such as beverage mixes—it is a common form of glucose widely used as a nutrition supplement in production of foodstuffs. Dextrose monohydrate is primarily consumed in North America as a corn syrup or high-fructose corn syrup. Anhydrous dextrose, on the other hand, is glucose that does not have any water molecules attached to it. Anhydrous chemical substances are commonly produced by eliminating water from a hydrated substance through methods such as heating or drying up (desiccation). Dextrose monohydrate can be dehydrated to anhydrous dextrose in industrial setting. Dextrose monohydrate is composed of approximately 9.5% water by mass; through the process of dehydration, this water content is eliminated to yield anhydrous (dry) dextrose. Anhydrous dextrose has the chemical formula C6H12O6, without any water molecule attached which is the same as glucose. Anhydrous dextrose on open air tends to absorb moisture and transform to the monohydrate, and it is more expensive to produce. Anhydrous dextrose (anhydrous D-glucose) has increased stability and increased shelf life, has medical applications, such as in oral glucose tolerance test.
==== Local application to the breasts ==== Transdermal application of progesterone with the intention of systemic therapy should not be equated with local treatment. The site of application of transdermal progesterone has been found to significantly influence its absorption. When transdermal progesterone is applied to the breasts, high concentrations within breast tissue have been observed. In one study, a 3- to 5-fold increase in local progesterone levels in the breast was observed with 50 mg transdermal progesterone in an alcohol/water-based gel applied to each breast in premenopausal women. In another study, a 70- to 110-fold increase in local concentrations of progesterone in the breasts was measured with application of a hydroalcoholic gel to the breasts in premenopausal women. A study observed a significant increase in circulating levels of progesterone when it was applied as a topical ointment to the breasts but not when it was applied to other areas like the thigh or abdomen. However, two other studies observed no apparent increase in circulating levels of progesterone with transdermal application of progesterone to the breasts. On the basis of its 10% transdermal bioavailability when applied to the breasts, a 50 mg dose of progesterone applied transdermally may result in a local concentration of progesterone in the breasts equivalent to 5 mg.
Sources: en.wikipedia.org
=== Heart and vascular === The SOMC Heart Care Unit is a 12-bed unit responsible for the care of adult cardiac patients and patients recovering from open heart surgery. SOMC utilizes a Universal Bed Model, in which the patient's room essentially changes throughout the open-heart procedure, starting as an intensive care recovery room on arrival from surgery and transitioning to a home-like environment with family space and amenities. Heart and Vascular services provided at SOMC include:
== Bibliography == Cowie, J. M. G. (John McKenzie Grant) (1991). Polymers: chemistry and physics of modern materials. Glasgow: Blackie. ISBN 978-0-412-03121-2. Hall, Christopher (1989). Polymer materials (PDF) (2nd ed.). London; New York: Macmillan. ISBN 978-0-333-46379-6. Rudin, Alfred (1982). The elements of polymer science and engineering. Academic Press. ISBN 978-0-12-601680-2. Wright, David C. (2001). Environmental Stress Cracking of Plastics. RAPRA. ISBN 978-1-85957-064-7.
Glutathione (GSH, ) is a tripeptide made of the amino acids glutamate, cysteine, and glycine. It is an antioxidant in plants, animals, fungi, and some bacteria and archaea. Glutathione is capable of preventing damage to important cellular components caused by sources such as reactive oxygen species, free radicals, peroxides, lipid peroxides, and heavy metals. It is the most abundant and important low-molecular-mass thiol within most cell types. It is synthesized by attaching cysteine to the carboxyl group of the glutamate side chain with a gamma peptide linkage, and to glycine with a normal peptide bond.
Sources: en.wikipedia.org
In a 2016 survey conducted by the Varkey Foundation and Populus, the question of whether or not those 15 to 21 favored legal migration received mixed responses. In the United States, that margin of support was 16%, higher than the global average of 8%. (See chart above.) According to Gallup, Americans aged 18 to 34 are more likely to view immigration as a "good thing" than their elders. By 2024, a clear majority of young adults supported increased patrols along the American-Mexican border to combat illegal immigration into the United States.
== Procedure == Sperm washing takes place in a laboratory following sperm donation. Sperm may be washed by density gradient centrifugation or by a "direct swim-up" technique that does not involve centrifugation. In normal semen samples, centrifugation causes no more DNA damage to spermatozoa than a direct swim-up technique. Washed sperm is concentrated in Ham's F-10 media without L-glutamine, warmed to 37 °C (99 °F). A chemical known as a cryoprotectant is added to the sperm to aid the freezing and thawing process. Further chemicals may be added which separate the most active sperm in the sample, as well as extend or dilute the sample so that vials for a number of inseminations are produced.
==== X-Ray Absorption Spectroscopy ==== X-Ray absorption spectroscopy (XAS) has been demonstrated as a technique for nuclear forensic investigations involving uranium speciation. Both the lower energy near-edge (XANES) and higher energy fine structure (EXAFS) analytical methods may be useful for this type of characterisation. Typically, XANES is employed to determine the oxidation state of the absorbing uranium atom, while EXAFS can be used to determine its local atomic environment. This spectroscopic method, when coupled with X-Ray diffraction (XRD), would be of most benefit to complex nuclear forensic investigations involving species of different oxidation states.
=== Marketing === The marketing of the Claritin brand is important in the history of direct-to-consumer advertising of drugs. The first television commercial for a prescription drug was broadcast in the United States in 1983, by Boots. It caused controversy. The federal Food and Drug Administration responded with strong regulations requiring disclosure of side effects and other information. These rules made pharmaceutical manufacturers balk at spending money on ads that had to highlight negative aspects. In the mid-1990s, the marketing team for Claritin at Schering-Plough found a way around these rules. They created brand awareness commercials that never actually said what the drug was for, but instead showed sunny images, and the voiceover said such things as "At last, a clear day is here" and "It's time for Claritin" and repeatedly told viewers "Ask your doctor [about Claritin]." The first ads made people aware of the brand and increased prescriptions, which led Schering-Plough and others to aggressively pursue the advertising strategy. In 1998, a 12-page one-shot comic based on the Batman: The Animated Series was given away to advertise Claritin. The book, written by PRIEST, penciled by Joe Staton, and inked by Mike DeCarlo, sees Tim Drake unable to perform his crime-fighting duties because hay fever and antihistamines make him drowsy. After being given a prescription for Claritin, he saved Batman from Poison Ivy.
Sources: en.wikipedia.org
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.
No. SR9009 has not been approved as a therapeutic drug in the United States, European Union, or other major markets. Human safety and efficacy data are very limited. Its presence in consumer products does not imply regulatory approval.
The World Anti-Doping Agency lists SR9009 as a prohibited substance because it can alter gene expression and metabolic pathways relevant to performance. The ban applies at all times, not only during competition. Detection relies on laboratory methods such as mass spectrometry.
Its legal status depends on the country and intended use. It is not an approved medicine in major jurisdictions. In sport, it is prohibited by anti-doping rules.