SR9009 raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
Reviewed 2025-09-18. Anything still debated is marked as such rather than presented as settled.
SR9009 is a synthetic small molecule studied as an agonist of REV-ERB nuclear receptors. REV-ERB alpha and REV-ERB beta help regulate circadian rhythms and metabolic gene expression. In laboratory research, SR9009 has been used to probe how these receptors affect skeletal muscle, liver, and adipose tissue. The compound was identified in academic drug-discovery work and is often described in scientific literature by its chemical name and research code. It is not an approved medicine, and human clinical data remain limited or absent.
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.
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 |
|---|---|---|
| Chemical class | Synthetic REV-ERB agonist | Small-molecule nuclear receptor ligand |
| Appearance | Off-white to pale yellow solid | Typical for research-grade powder |
| Solubility class | Soluble in DMSO; low water solubility | Common stock solutions use organic solvent |
| Typical stock solvent | Dimethyl sulfoxide | Used for laboratory assays |
| Common analytical method | HPLC with UV or mass detection | Used for identity and purity checks |
Detection of SR9009 in biological samples usually relies on liquid chromatography coupled to tandem mass spectrometry. This approach separates the compound from matrix components and identifies it by mass transitions. Because SR9009 can undergo metabolism, laboratories often look for both parent drug and specific metabolites. Sample preparation may involve protein precipitation or solid-phase extraction. Method validation examines sensitivity, carryover, and interference from related substances, and reference standards are required for accurate calibration.
Storage recommendations for SR9009 reference material typically specify a freezer at -20 °C or lower, with protection from moisture and light. Repeated freeze-thaw cycles can degrade small molecules and introduce variability. Stock solutions in dimethyl sulfoxide are often aliquoted to avoid repeated handling. Stability studies may examine degradation under heat, humidity, and light exposure. The compound's thiophene and nitro groups can participate in reactions that alter analytical signals over time, so such changes affect quantitative results.
Quality control for research materials includes identity confirmation by nuclear magnetic resonance and purity assessment by high-performance liquid chromatography. Mass spectrometry provides molecular weight confirmation and can detect related impurities. Purchasers should request a certificate of analysis that lists lot-specific data. Online products advertised for human use often lack such documentation. Distinguishing legitimate research material from mislabeled or contaminated samples is a recurring challenge in independent testing, and independent laboratories may use orthogonal methods to verify identity.
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.
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.
=== Ivermectin === Oral ivermectin is effective in eradicating scabies, often in a single dose. It is the treatment of choice for crusted scabies, and is sometimes prescribed in combination with a topical agent. It has not been tested on infants, and is not recommended for children under six years of age. Topical ivermectin preparations are effective for scabies in adults. It has also been useful for sarcoptic mange, the veterinary analog of human scabies. One review found that the efficacy of permethrin is similar to that of systemic or topical ivermectin. A separate review found that although oral ivermectin is usually effective for the treatment of scabies, it does have a higher treatment failure rate than topical permethrin. Another review found that oral ivermectin provided a reasonable balance between efficacy and safety. A study has demonstrated that scabies is markedly reduced in populations taking ivermectin regularly; the drug is widely used for treating scabies and other parasitic diseases, particularly among the poor and disadvantaged in the tropics, beginning with the developer Merck providing the drug at no cost to treat onchocerciasis from 1987.
Bismuth-209 (209Bi) is an isotope of bismuth with the longest known half-life of any nuclide that undergoes α-decay (alpha decay); the decay product is thallium-205. It has 83 protons and a magic number of 126 neutrons, and naturally occurring bismuth consists entirely of this isotope.
=== Israel trip === During a July 2026 trip to Israel, Chabad "outreach figure" Yossi Farro presented Peters with a "custom necklace" which shows the Star of David fused with the OpenAI logo. The moment was considered the "latest flashpoint" in a debate over how the Jewish community should engage with controversial online figures. Farro joked online that the "mashup" amounted to the AI company's logo "mogging" the Jewish star. The two switched restaurants mid-meal once Peters realized the one they had chosen was not kosher. Farro posted about the trip, saying Peters "is loving Israel and Israel is loving him." "Peters's manager is Jewish," Farro further explained, "and the rabbi of the Chabad community connected to the manager thought it would be worthwhile to introduce us. Thank God, we connected." The Times of Israel reported that Peters had been seen talking to prime minister Benjamin Netanyahu's adviser Topaz Luk at a Tel Aviv nightclub. Israeli influencers who appeared on Peters's streams, Shira Braun and Shira Klein, were reprimanded and demoted from their positions by the Israel Defense Forces.
=== Performance === Nicotine-containing products are sometimes used for the performance-enhancing effects of nicotine on cognition. A 2010 meta-analysis of 41 double-blind, placebo-controlled studies concluded that nicotine or smoking had significant positive effects on aspects of fine motor abilities, alerting and orienting attention, and episodic and working memory. A 2015 review noted that stimulation of the α4β2 nicotinic receptor is responsible for certain improvements in attentional performance; among the nicotinic receptor subtypes, nicotine has the highest binding affinity at the α4β2 receptor (Ki=1 nM), which is also the biological target that mediates nicotine's addictive properties. Nicotine has potential beneficial effects, but it also has paradoxical effects, which may be due to the inverted U-shape of the dose-response curve or pharmacokinetic features.
Sources: en.wikipedia.org
== History == The concept of validation was first proposed by two Food and Drug Administration (FDA) officials, Ted Byers and Bud Loftus, in 1979 in USA, to improve the quality of pharmaceuticals. It was proposed in direct response to several problems in the sterility of large volume parenteral market. The first validation activities were focused on the processes involved in making these products, but quickly spread to associated processes including environmental control, media fill, equipment sanitization and purified water production. The concept of validation was first developed for equipment and processes and derived from the engineering practices used in delivery of large pieces of equipment that would be manufactured, tested, delivered and accepted according to a contract The use of validation spread to other areas of industry after several large-scale problems highlighted the potential risks in the design of products. The most notable is the Therac-25 incident. Here, the software for a large radiotherapy device was poorly designed and tested. In use, several interconnected problems led to several devices giving doses of radiation several thousands of times higher than intended, which resulted in the death of three patients and several more being permanently injured. In 2005 an individual wrote a standard by which the transportation process could be validated for cold chain products.
==== Peanut tofu ==== In the Ryukyu Islands, jīmāmi-dōfu (ジーマーミ豆腐) a peanut milk, made by crushing raw peanuts, adding water and straining, is combined with starch (usually sweet potato, known locally as nmukuji, nmukashi (芋澱粉) and heated until curdling occurs. The Chinese equivalent is 落花生豆腐 luòhuāshēng dòufu.
Vanillin is most prominent as the principal flavor and aroma compound in vanilla. Cured vanilla pods contain about 2% by dry weight vanillin. Relatively pure vanillin may be visible as a white dust or "frost" on the exteriors of cured pods of high quality. It is also found in Leptotes bicolor, a species of orchid native to Paraguay and southern Brazil, and the Southern Chinese red pine. At lower concentrations, vanillin contributes to the flavor and aroma profiles of foodstuffs as diverse as olive oil, butter, raspberry, and lychee fruits. Aging in oak barrels imparts vanillin to some wines, vinegar, and spirits. In other foods, heat treatment generates vanillin from other compounds. In this way, vanillin contributes to the flavor and aroma of coffee, maple syrup, and whole-grain products, including corn tortillas and oatmeal.
Sources: en.wikipedia.org
Unlike most modern eggs, many non-avian dinosaur eggs had a rough texture formed by nodes and ridges ornamenting the surface of their shell. This is predominant in Cretaceous dinosaur eggs, but very rare in eggs from the Jurassic or Triassic. Because of the lack of modern analogues, the purpose of eggshell ornamentation is unknown, but many functions have been proposed. Possibly, they provided extra strength to the eggshell without having pore canals too long for adequate gas exchange. They could also have helped keep substrate away from the pore openings of eggs that were buried, but modern turtles and crocodylians which bury their eggs have smooth eggshells, so this adaptation is not necessary for animals which bury their eggs. Another hypothesis, proposed by R. M. Mellon in 1982 in his senior thesis at Princeton University, is that the ridges and nodes would have formed pathways for gas to flow across the surface of the eggshell, preventing accumulation of too much CO2 and aiding the flow of oxygen and water vapor. Since it varies from egg to egg, the texture of an eggshell's ornamentation is useful for classification. Six types of ornamentation were catalogued by Carpenter in 1999:
Diplomatic relations between Cuba and the United States continued for some time after Batista's fall, but President Eisenhower deliberately left the capital to avoid meeting Castro during the latter's trip to Washington, D.C. in April, leaving Vice President Richard Nixon to conduct the meeting in his place. Cuba began negotiating for arms purchases from the Eastern Bloc in March 1960. The same month, Eisenhower gave approval to CIA plans and funding to overthrow Castro. In January 1961, just prior to leaving office, Eisenhower formally severed relations with the Cuban government. That April, the administration of newly elected American President John F. Kennedy mounted the unsuccessful CIA-organized ship-borne invasion of the island by Cuban exiles at Playa Girón and Playa Larga in Santa Clara Province—a failure that publicly humiliated the United States. Castro responded by publicly embracing Marxism–Leninism, and the Soviet Union pledged to provide further support. In December, the US government began a violent campaign of terrorist attacks against civilians in Cuba, and covert operations and sabotage against the administration, in an attempt to overthrow the Cuban government.
February 18, 2009: Taiwan The Directorate General of Budget, Accounting and Statistics announced that its economy had contracted an unprecedented 8.36% in the fourth quarter of 2008; and also recorded 2 consecutive quarters of economic contraction, thus placing the country in a technical recession.
== External links == Histology image: 01807loa – Histology Learning System at Boston University - "Bone Marrow and Hemopoiesis: bone marrow smear, neutrophil series" Histology at KUMC blood-blood11 Histology image: 75_07 at the University of Oklahoma Health Sciences Center Histology at okstate.edu Slide at hematologyatlas.com - "Neutrophil band" visible in second row Interactive diagram at lycos.es
Sources: en.wikipedia.org
SR9009 is a synthetic research compound that acts on REV-ERB nuclear receptors. It is not approved for human use and is sold only as a research chemical. Its effects have been studied mainly in cells and rodents.
It binds REV-ERB alpha and REV-ERB beta and changes the expression of genes tied to metabolism and circadian rhythm. These changes can affect mitochondria and energy use in animal models. The exact chain from receptor binding to physiological outcome is still being mapped.
No reliable human trials show that SR9009 improves athletic performance. Some rodent studies report endurance changes, but these results are not proof of human benefit. Its use in sport is prohibited, and quality and safety data are lacking.
No. It is an investigational compound without approved therapeutic indications. It is sold for research purposes only in many jurisdictions.