A practical reference on research chemical: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-03-07 and is reviewed periodically as new material appears.
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.
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 |
|---|---|---|
| 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 |
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.
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.
SR9009 is a synthetic small molecule developed as an agonist of the nuclear receptors REV-ERBα (NR1D1) and REV-ERBβ (NR1D2). These receptors help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, SR9009 alters transcription of genes involved in lipid metabolism, inflammation, and mitochondrial function. It is not an approved medicine, and its pharmacological profile in humans remains largely uncharacterized. The compound is frequently discussed in the context of circadian biology and metabolic research rather than clinical use.
Preclinical reports have linked SR9009 to improved endurance and altered energy expenditure in rodents. Such findings have prompted interest in whether REV-ERB activation can influence skeletal muscle metabolism. However, the reported effects depend on dose, route, and experimental model, and replication across laboratories is limited. Human trials have not established comparable outcomes, so claims about exercise performance remain speculative. The absence of controlled human data is a central limitation in interpreting these observations.
The mechanism of action involves binding to REV-ERB receptors and recruiting corepressor complexes, which represses target gene transcription. This contrasts with many nuclear receptor agonists that activate transcription. Downstream effects may include changes in autophagy, mitochondrial biogenesis, and lipid handling, but the precise pathways remain an active area of study. Whether these molecular events translate into meaningful physiological effects in humans is unresolved. Most evidence comes from cultured cells and rodent models rather than human participants.
On 2 March, Hezbollah fired several rockets at northern Israel, setting off sirens in Haifa and the Upper Galilee. The group said its actions were in response to the assassination of Iranian supreme leader Ali Khamenei. One of the rockets was intercepted, while several others hit open areas. Hezbollah later claimed that the attack was a "defensive act" after over a year of Israeli attacks despite a truce. It added that it restarted fighting to force Israel to stop its aggression and evacuate from seized Lebanese territories, emphasising that the move was unrelated to the Iran war. The IAF and Israeli Navy conducted extensive retaliatory strikes across Lebanon, mainly targeting Dahieh and southern Lebanon. The IDF said it struck over 70 targets, while issuing evacuation orders for over 50 villages in the south and east. It added that Hussein Meklad, Hezbollah's intelligence chief, was killed. At least 52 people were killed, 154 were injured, and 29,000 others were displaced, according to the Lebanese Health Ministry. In response to Hezbollah's actions, prime minister Nawaf Salam banned the group from conducting military activities. On 3 March, Israel resumed ground operations in Lebanon and continued conducting strikes. Attacks hit weapons facilities, command centers, and communication equipment, along with the studios of Hezbollah-linked outlets Al-Nour and Al-Manar. The IDF said it struck 160 targets since the escalation and announced that it killed a senior liaison to the IRGC in Beirut the day prior.
=== Medicine === Radioactive medical waste tends to contain beta particle and gamma ray emitters. It can be divided into two main classes. In diagnostic nuclear medicine a number of short-lived gamma emitters such as technetium-99m are used. Many of these can be disposed of by leaving it to decay for a short time before disposal as normal waste. Other isotopes used in medicine, with half-lives in parentheses, include:
==== Escaping to Wales ==== The Thomas family also made several escapes back to Wales. Between 1941 and 1943, they lived intermittently in Plas Gelli, Talsarn, in Cardiganshire. Plas Gelli sits close by the River Aeron, after whom Aeronwy is thought to have been named. Some of Thomas's letters from Gelli can be found in his Collected Letters whilst an extended account of Thomas's time there can be found in D. N. Thomas's book, Dylan Thomas: A Farm, Two Mansions and a Bungalow (2000). The Thomases shared the mansion with his childhood friends from Swansea, Vera and Evelyn Phillips. Vera's friendship with the Thomases in nearby New Quay is portrayed in the 2008 film The Edge of Love. In July 1944, with the threat in London of German flying bombs, Thomas moved to the family cottage at Blaencwm near Llangain, Carmarthenshire, where he resumed writing poetry, completing Holy Spring and Vision and Prayer. In September that year, the Thomas family moved to New Quay in Cardiganshire (Ceredigion), where they rented Majoda, a wood and asbestos bungalow on the cliffs overlooking Cardigan Bay. It was there that Thomas wrote a radio piece about New Quay, Quite Early One Morning, a sketch for his later work, Under Milk Wood.
Bully: Brett Height: 5'8 Weight: 164 lb Victim(s): Zack Fighter: Abel Cullum Height: 5'7 Weight: 158 lb Money earned by Bully: $1000 Money earned by victim(s): $9000 Original airing: Friday October 4, 2012.
Bitcoin wallets were the first cryptocurrency wallets, enabling users to store the information necessary to transact bitcoins. The first wallet program, simply named Bitcoin, and sometimes referred to as the Satoshi client, was released in 2009 by Nakamoto as open-source software. Bitcoin Core is among the best known clients. Forks of Bitcoin Core exist such as Bitcoin Unlimited. Wallets can be full clients, with a full copy of the blockchain to check the validity of mined blocks, or lightweight clients, just to send and receive transactions without a local copy of the entire blockchain. Third-party internet services, called online wallets or hot wallets, store users' credentials on their servers, making them susceptible of hacks. Cold storage protects bitcoins from such hacks by keeping private keys offline, either through specialized hardware wallets or paper printouts.
Sources: en.wikipedia.org
== Etymology == The genus name is from Late Latin falco meaning "falcon". The specific epithet sparverius is Medieval Latin for a "sparrowhawk". Until the sixth edition of the AOU Checklist of North American Birds was published by the American Ornithologists' Union in 1983, the most commonly used name for the American kestrel was the sparrow hawk. This was due to a mistaken connection with the Eurasian sparrowhawk in the genus Accipiter. The sixth edition of the AOU Checklist corrected this, officially renaming the bird American kestrel. Several other colloquial names for the kestrel are also in use, including grasshopper hawk, due to its diet, and killy hawk, due to its distinct call.
All the proteolytic activity of the asparagine peptide lyases is only self-cleavages, then no further peptidase activity occurs. The main residue of the active site is the asparagine and there are other residues involved in the catalytic mechanism, which are different between the different families of asparagine peptide lyases. The cleavage mechanism consists in the cyclization of the asparagine, assisted by other active site residues. In certain conditions, the asparagine cyclic structure nucleophilically attacks its C-terminal peptide bond to the main chain forming a new bond to create a stable succinimide, cleaving itself from the main chain and consequently releasing the two halves of the product. No inhibitors are known.
Sheftel, et al. (2009) used RNA interference (RNAi) to delete the NUBPL gene in yeast (Y. lipolytica). They observed decreased levels and activity of mitochondrial complex I, leading them to conclude that NUBPL is required for complex I assembly and activity. Their experiments showed functional conservation of NUBPL in yeast and humans, an indication that the protein serves an important function. Sheftel, et al. observed structural abnormalities in mitochondria that were NUBPL-depleted mitochondria.
Inositol nicotinate, also known as inositol hexanicotinate or inositol hexaniacinate, is a compound of niacin (vitamin B3) and inositol. It is marketed in the United States as a "no-flush" form of niacin in dietary supplements. When ingested, inositol nicotinate breaks down into inositol and niacin. The niacin component helps widen blood vessels (vasodilation), lowers blood lipid levels (including cholesterol), and inhibits a protein involved in blood clotting. Inositol nicotinate is used to treat blood circulation problems, including: Raynaud's phenomenon Intermittent claudication Some research shows it can improve symptoms of Raynaud's phenomenon over several weeks. However, its effectiveness in treating other conditions like: High cholesterol High blood pressure Leg pain during exercise (due to poor circulation) remains unclear, with studies producing mixed results. Other proposed uses, such as for: Migraines Psoriasis Restless legs syndrome have insufficient supporting evidence. Inositol nicotinate is generally safe when taken by mouth, but possible side effects include:
Sources: en.wikipedia.org
Research into virtual reality (VR) hardware and software started as early as 1968 by Ivan Sutherland and his student Bob Sproull, but most equipment was too expensive for consumer use, and its use for games was limited. The first VR head mounted display was connected to a computer. In the late 1980s, Jaron Lanier and Thomas G. Zimmerman, former programmers for Atari, Inc., began developing hardware under the name VPL Research, with Lanier coining the term "virtual reality" for their products. One of VPL's products was the VPL DataGlove; a glove that sensed the user's finger movement and translated it into computer input. The idea inspired engineers at Abrams/Gentile Entertainment (AGE) to work with Mattel and Nintendo to build a low-cost version of the DataGlove to work with the Nintendo Entertainment System (NES), omitting much of the technical sophistication and movement sensitivity of the DataGlove as to achieve a reasonable consumer cost. The Power Glove was released in 1989. The games Super Glove Ball and Bad Street Brawler were specifically designed to use the Power Glove, while other NES games could be played using the Power Glove by mapping its output to various controls. About one million Power Glove units were sold before Mattel discontinued it in 1990. Its low cost compared to the DataGlove and other similar gloves led academics to buy the unit for their own research.
The term psychiatry was first coined by the German physician Johann Christian Reil in 1808 and literally means the 'medical treatment of the soul' (ψυχή psych- 'soul' from Ancient Greek psykhē 'soul'; -iatry 'medical treatment' from Gk. ιατρικός iātrikos 'medical' from ιάσθαι iāsthai 'to heal'). A medical doctor specializing in psychiatry is a psychiatrist (for a historical overview, see: Timeline of psychiatry).
=== Films === Munim made her debut in Hindi films with filmmaker Dev Anand's Des Pardes. Her other films with Dev Anand include Lootmaar, and Man Pasand. She was cast opposite Amol Palekar in Basu Chatterjee's Baaton Baaton Mein. Her notable films with Rishi Kapoor include Karz, and Yeh Vaada Raha.She starred with actor Rajesh Khanna in many films including Fiffty Fiffty, Souten, Bewafai, Suraag, Insaaf Main Karoonga, Rajput, Aakhir Kyon?, Paapi Pet Ka Sawaal Hai, Alag Alag, and Adhikar. She also starred in hits like Bhagwaan Dada with Rajinikanth and Yudh with Jackie Shroff. Her last film was Jigarwala, released in 1991. In an interview with Simi Garewal, Munim said: "Sometimes I feel [that I left films too soon] too, but then I felt that there was a lot more to the world that I wanted to explore and experience, and not just stick to movies. I decided to quit. I never regretted it. I never wanted to go back, ever."
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.
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.