The short version of SR9009 fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2025-11-14. 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.
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.
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.
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.
| 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 |
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.
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 binds REV-ERB receptors and alters their repressive activity on target genes. This action can change transcription of genes involved in lipid handling, glucose metabolism, and mitochondrial function. In rodent studies, treated animals have shown changes in muscle oxidative capacity and exercise performance, though effects vary by dose, duration, and model. The precise molecular steps connecting receptor binding to whole-body outcomes are still an active area of investigation. Findings in animals do not automatically translate to humans.
Because REV-ERB receptors are core clock components, SR9009 has been examined for effects on daily rhythms as well as metabolism. Research has explored whether the compound can shift or reinforce circadian gene expression in tissues such as liver and muscle. Some studies report improved metabolic markers in obese or diabetic mice, while others show context-dependent responses. Questions remain about which effects are direct, which are secondary to timing, and how they might differ across species.
Once all the eggs are secured in the nest, the pair will spawn again. If more than one female is present in the breeding tank, the male may spawn with all of them. The spawning sessions will continue for two to four hours, and produce between 300 and 800 eggs. Dwarf gouramis have a fecundity of about 600 eggs.[1] Upon completion, the male will place a fine layer of bubbles beneath the eggs, assuring that they remain in the bubble nest. The male will protect the eggs and fry. In 12 to 24 hours the fry will hatch, and continue developing within the protection of the bubble nest. After three days they are sufficiently developed to be free swimming and leave the nest. When the fry are two to three days old the male should also be removed or he may consume the young. After spawning the female should be moved to a different tank. The male will now take sole responsibility for the eggs, aggressively defending the nest and surrounding territory. When first hatched, the tiny fry should be fed infusoria, and later, brine shrimp and finely ground flakes. Freeze-dried tablets may also be fed to older fry.
=== Inkjet printing === Inkjet printing requires coating paper in a hydrophobic polymer, and then selectively placing an ink that etches the polymer to reveal paper. This technique is low cost with high resolution, but is limited by the speed of placing one ink droplet at a time.
=== Nicole Craig === Nicole Craig (Sarah Parish) is the CEO of investment fund Mallon Mercer, and a major Pierpoint client. Despite being an outspoken feminist in public, she repeatedly engages in predatory sexual behavior toward junior bankers. In series 1, Nicole makes a drunken sexual advance on graduate Harper Stern following a client dinner. Harper initially maintains the relationship to protect her job but later deliberately antagonizes Nicole into severing ties with Pierpoint. In series 2, Robert, looking to make more outgoing calls, wins Nicole back as a Pierpoint client by being endearingly honest about feeling out of his depth at the job. The two connect over dinner, and Nicole masturbates him in the car on the way home. The two continue an illicit sexual relationship for months onward, with Robert projecting many of his unresolved issues with his late mother onto the domineering Nicole. Robert later learns from Harper that Nicole made an advance on her the previous year. Nicole later sexually assaults new hire Venetia Berens, who Robert left alone with Nicole during a client dinner that went sideways. Venetia’s attempt to report the incident is suppressed by Pierpoint management. Robert tries to cut ties with Nicole afterwards, but she reestablishes her control over him after bailing him out when he is arrested for cocaine possession. In series 3, Robert and Nicole are still involved; Robert spends a night with her, only to suddenly find her dead the next morning.
Whether the caregiver or the infant controls the feeding appears to affect the infant's ability to learn to self-regulate their milk intake. Proper cleaning and sterilization of bottles are recommended to avoid bacterial contamination and illness, particularly in areas where water quality and sanitary conditions are not good.
Sources: en.wikipedia.org
The first humans to form substantial settlements in what is now Knoxville arrived during the Woodland period (c. 1000 B.C. – 1000 A.D). Knoxville's two most prominent prehistoric structures are Late Woodland period burial mounds, one located along Cherokee Boulevard in Sequoyah Hills, and the other located along Joe Johnson Drive on the University of Tennessee campus. Substantial Mississippian period (c. 1100–1600 A.D.) village sites have been found at Post Oak Island (along the river near the Knox-Blount line), and at Bussell Island (near Lenoir City). The Spanish expedition of Hernando de Soto is believed to have traveled down the French Broad Valley and visited the Bussell Island village in 1540 en route to the Mississippi River. A follow-up expedition led by Juan Pardo may have visited village sites in the Little Tennessee Valley in 1567. The records of these two expeditions suggest the area was part of a Muskogean chiefdom known as Chiaha, which was subject to the Coosa chiefdom further to the south. By the 18th century, the Cherokee had become the dominant tribe in the East Tennessee region, although they were consistently at war with the Creeks and Shawnee. The Cherokee people called the Knoxville area kuwanda'talun'yi, which means "Mulberry Place." Most Cherokee habitation in the area was concentrated in the Overhill settlements along the Little Tennessee River, southwest of Knoxville.
== Effectiveness == Negative pressure wound therapy is usually used with chronic wounds or wounds that are expected to present difficulties while healing (such as those associated with diabetes). Negative pressure wound therapy is approved by the FDA and numerous randomized controlled trials have been conducted on this technique, however, the evidence supporting how effective NPWT is compared to standard wound care dressings is not clear. Low-level evidence indicates that there may be a lower risk of death and less surgical site infections associated with NPWT compared to standard dressing care, however there may not be a difference in the risk of wound reopening when comparing the two approaches. NPWT may increase the risk of skin blistering compared to standard wound care. NPWT may be a more cost effective approach for closing wounds following a caesarean section in women who are obese, however, NPWT is not likely as cost effective for closing wounds associated with fracture surgeries. It is not clear if NPWT is cost effective for closing wounds associated with other types of surgery. NPWT has been used to treat non-trauma patients after abdominal surgery. Non-trauma patients are people who might need surgery for conditions such as abdominal infections or cancer. However, it is still not clear how safe and effective NPWT is for treating non-trauma patients with open abdomens. For treating diabetic ulcers of the feet, "consistent evidence of the benefit of NPWT" in the treatment of diabetic ulcers of the feet has been reported.
Mercabarna is a food-trading estate that concentrates wholesale markets (fruit and vegetables, fish and flowers) and Barcelona's abattoir, as well as a large area of complementary activities (ZAC), boasting some 450 fresh-food preparation, commercial, distribution, importing and exporting businesses. A total of 700 businesses are located within its 90-hectare site. It supplies over ten million people and is a benchmark market worldwide. Mercabarna, as public limited company, was founded in 1967 in Barcelona. In the past, wholesale food markets were situated in central locations within the city of Barcelona and occupied buildings which are now used for important social, cultural and leisure facilities. The growth of the city and of its population led to problems of all kinds for these central markets in terms of capacity, communications, the environment and so forth. Gradually, therefore, they relocated to the Mercabarna precinct. In 2019 it sold 2,355,293 tons of food, 4.2% more than in 2018. The turnover of the companies that sell there exceeds 5 billion euros. The economic crisis resulting from the COVID-19 pandemic negatively impacted the sales of some of these businesses, especially those in the hospitality and catering sector.
== Characteristics == Aerated chocolate is a foam, meaning it contains gas, which conventional chocolate lacks. This distinction gives aerated chocolate different physical properties and eating experiences than regular chocolate: they have a lower density, occupying more space for the same weight, are more brittle, and have a larger surface area. Chocolates held together by solid particles rather than fats have the lowest density among aerated chocolates, between 0.1–0.3 g/cm3 (0.058–0.17 oz/cu in), several times lower than the average density of regular chocolate (around 1.3 g/cm3 (0.75 oz/cu in)). As a result of these properties, biting into some aerated chocolates, particularly those with larger bubbles, produces an audible crunch. When the chocolate enters the mouth, a "fragile" mouthfeel is created until the chocolate is chewed, upon which it quickly begins to melt and the mouthfeel shifts to become creamy. The way the chocolate melts changes with the size of bubbles: as they get smaller, the chocolate becomes smoother and melts quicker. In the fourth type of aerated chocolate, those held together by solid particle skeletons rather than with fat, the chocolate doesn't melt with heat as conventional chocolate does. Rather, because of its very low density, as it enters the mouth it dissolves. Aerated chocolates have a more intense flavour than conventional chocolates due to their larger surface area. The gas used to aerate chocolates also has an effect on the intensity of flavour, although a comparatively small one.
Another common criticism is that the racemic mixture (containing both L and D enantiomers) of amino acids produced in a Miller–Urey experiment is not exemplary of abiogenesis theories, as life on Earth today uses almost exclusively L-amino acids. While it is true that Miller–Urey setups produce racemic mixtures, the origin of homochirality is a separate area in origin of life research. Recent work demonstrates that magnetic mineral surfaces like magnetite can be templates for the enantioselective crystallization of chiral molecules, including RNA precursors, due to the chiral-induced spin selectivity (CISS) effect. Once an enantioselective bias is introduced, homochirality can then propagate through biological systems in various ways. In this way, enantioselective synthesis is not required of Miller–Urey reactions if other geochemical processes in the environment are introducing homochirality. Finally, Miller–Urey and similar experiments primarily deal with the synthesis of monomers; polymerization of these building blocks to form peptides and other more complex structures is the next step of prebiotic chemistry schemes. Polymerization requires condensation reactions, which are thermodynamically unfavored in aqueous solutions because they expel water molecules. Scientists as far back as John Desmond Bernal in the late 1940s thus speculated that clay surfaces would play a large role in abiogenesis, as they might concentrate monomers.
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.
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.