The short version of storage stability fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2025-11-02. Anything still debated is marked as such rather than presented as settled.
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.
Regulatory agencies have not approved SR9009 for human therapeutic use. It is typically sold as a research chemical with labels stating that it is not for human consumption. The World Anti-Doping Agency prohibits the substance in sport, generally under the category of non-approved substances. Customs and national laws may restrict importation, sale, or possession. Product quality and legal status can vary by country and vendor, and therapeutic claims are not permitted in regulated advertising because the compound lacks approval.
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.
| Property | Value | Notes |
|---|---|---|
| Chemical class | Synthetic REV-ERB agonist | Binds REV-ERBα and REV-ERBβ in preclinical models |
| Molecular formula | C20H24ClN3O4S | Reported for the parent compound |
| CAS Registry Number | 1379686-30-2 | Common identifier in chemical databases |
| Appearance | Off-white to pale yellow solid | Typical research chemical solid |
| Solubility | Soluble in DMSO and ethanol; low in water | Class: small organic molecule |
SR9009 is frequently discussed in fitness and research-chemical contexts, yet it has no approved medical indication. Regulatory agencies have not authorized it for human use, and it is not a standard prescription drug. Some sports organizations list it as a prohibited substance because of its potential performance-enhancing properties. Published human data are sparse, so claims about its effects in people often rely on animal models or anecdotal reports. Quality and identity of online materials can vary widely.
SR9009 is a synthetic small molecule studied as a REV-ERB agonist. REV-ERBα and REV-ERBβ are nuclear receptors that help regulate circadian rhythms and metabolic gene expression. The compound was identified in academic screening efforts to find synthetic ligands for these receptors. In cell and animal studies, SR9009 alters transcription of genes involved in lipid and glucose metabolism, and it can shift circadian behavior. It is not an approved therapeutic agent.
Regulatory status varies by country and intended use. Major drug agencies have not granted marketing authorization for SR9009 as a medicine, and it is not listed as a controlled substance in many jurisdictions. It is often sold as a research chemical, a category that may fall outside pharmaceutical manufacturing rules. Buyers should verify local laws and supplier documentation, including certificates of analysis. The lack of standardized quality controls raises concerns about identity, purity, and actual content in products marketed online.
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.
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.
variation in the contents prior to packaging variation in the packaging components variation in the product and packaging processes variation in storage, distribution, cold chain, etc. variation in the quantity of contents
Following independence on 15 August 1947, Jawaharlal Nehru served as prime minister of the Dominion of India, remaining caretaker until 1951, shortly after India became a republic in 1950. Led by Nehru, the Congress won the 1951, 1957, and 1962 general elections comfortably. After Nehru died in May 1964, Lal Bahadur Shastri became prime minister. Shastri died in January 1966, shortly after signing the Tashkent Peace Declaration. The Congress chose Indira Gandhi as prime minister, leading the party to election victories in 1967 and 1971. In 1975, she declared a state of emergency, suspending civil liberties, which led to Congress being voted out in 1977. Congress returned to power in 1980. Following a military operation at the Golden Temple in Amritsar, Indira Gandhi was assassinated on 31 October 1984. Indira Gandhi's son, Rajiv Gandhi, succeeded her and won the late 1984 elections. During the general election campaign of 1991, Rajiv Gandhi was assassinated by a Sri Lankan Tamil separatist. Congress emerged from the elections as the largest party, and P. V. Narasimha Rao formed a minority government that completed a full five-year term. After the 1999 elections, the BJP's Atal Bihari Vajpayee led a National Democratic Alliance (NDA) coalition and became the first non-Congress prime minister to complete a five-year term. The NDA was defeated in 2004 by the Congress-led United Progressive Alliance (UPA). Manmohan Singh served as prime minister with external support, returning with increased, independent numbers in 2009.
Birches native to Eurasia include Betula albosinensis – Chinese red birch (northern + central China) Betula alnoides – alder-leaf birch (China, Himalayas, northern Indochina) Betula ashburneri – (Bhutan, Tibet, Sichuan, Yunnan Provinces in China) Betula baschkirica – (eastern European Russia) Betula bomiensis – (Tibet) Betula browicziana – (Turkey and Georgia) Betula buggsii – (China) Betula calcicola – (Sichuan + Yunnan Provinces in China) Betula celtiberica – (Spain and Portugal) Betula chichibuensis – (Chichibu region of Japan) Betula chinensis – Chinese dwarf birch (China, Korea) Betula coriaceifolia – (Uzbekistan) Betula corylifolia – (Honshu Island in Japan) Betula costata – (northeastern China, Korea, Primorye region of Russia) Betula cylindrostachya – (Himalayas, southern China, Myanmar) Betula dahurica – (eastern Siberia, Russian Far East, northeastern China, Mongolia, Korea, Japan) Betula delavayi – (Tibet, southern China) Betula ermanii – Erman's birch (eastern Siberia, Russian Far East, northeastern China, Korea, Japan) Betula falcata – (Tajikistan) Betula fargesii – (Chongqing + Hubei Provinces in China) Betula fruticosa – (eastern Siberia, Russian Far East, northeastern China, Mongolia, Korea, Japan) Betula globispica – (Honshu Island in Japan) Betula gmelinii – (Siberia, Mongolia, northeastern China, Korea, Hokkaido Island in Japan) Betula grossa – Japanese cherry birch (Japan) Betula gynoterminalis – (Yunnan Province in China) Betula honanensis – (Henan Province in China) Betula humilis or Betula kamtschatica – Kamchatka birch platyphylla (northern + central Europe, Siberia, Kazakhstan, Xinjiang, Mongolia, Korea) Betula insignis – (southern China) Betula karagandensis – (Kazakhstan) Betula klokovii – (Ukraine) Betula kotulae – (Ukraine) Betula luminifera – (China) Betula maximowicziana – monarch birch (Japan, Kuril Islands) Betula medwediewii – Caucasian birch (Turkey, Iran, Caucasus) Betula megrelica – (Republic of Georgia) Betula microphylla – (Siberia, Mongolia, Xinjiang, Kazakhstan, Kyrgyzstan, Uzbekistan) Betula nana – dwarf birch (northern + central Europe, Russia, Siberia, Greenland, Northwest Territories of Canada)) Betula pendula – silver birch (widespread in Europe and northern Asia; Morocco; naturalized in New Zealand and scattered locations in US + Canada) Betula platyphylla – (Betula pendula var. platyphylla) – Siberian silver birch (Siberia, Russian Far East, Manchuria, Korea, Japan, Alaska, western Canada) Betula potamophila – (Tajikistan) Betula potaninii – (southern China) Betula psammophila – (Kazakhstan) Betula pubescens – downy birch, also known as white, European white or hairy birch (Europe, Siberia, Greenland, Newfoundland; naturalized in scattered locations in US) Betula raddeana – (Caucasus) Betula saksarensis – (Khakassiya region of Siberia) Betula saviczii – (Kazakhstan) Betula schmidtii – (northeastern China, Korea, Japan, Primorye region of Russia) Betula sunanensis – (Gansu Province of China) Betula szechuanica – (Betula pendula var. szechuanica)—Sichuan birch (Tibet, southern China) Betula tianshanica – (Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Xinjiang, Mongolia) Betula utilis – Himalayan birch (Afghanistan, Central Asia, China, Tibet, Himalayas) Betula wuyiensis – (Fujian Province of China) Betula zinserlingii – (Kyrgyzstan) Note: many American texts have B. pendula and B. pubescens confused, though they are distinct species with different chromosome numbers.
=== Hyperglycemia hyperosmolar state (HHS) === hyperosmolar non-ketotic state (HONK) or Hyperglycemia hyperosmolar state (HHS) is an acute complication sharing many symptoms with DKA, but an entirely different origin and different treatment. Oppositely, the prevalence of HHS is common in individuals with T2D. Furthermore, it showcases approximately ten times greater mortality rate than the observed in DKA. Both DKA and HHS occur when insulin becomes less effective, either due to a shortage of insulin secretion ( as in DKA), or lack of proper insulin action (as in HHS). For a person with very high blood glucose levels (usually considered to be above 30 mmol/L (600 mg/dL), that will result in osmotic diuresis, water is osmotically drawn out of cells into the blood and the kidneys eventually begin to dump glucose into the urine. This results in a loss of water (which contains electrolytes and glucose) that will increase blood osmolarity. If the fluid is not replaced, by mouth or intravenously, will ultimately result in dehydration (which in HHS typically becomes worse than DKA). Also causes electrolyte imbalances which are always dangerous. A decline in consciousness levels is primarily attributed to an increase in plasma osmolality. Lethargy may ultimately progress to a coma which is more common in T2D than T1D. HHS, unlike DKA, does not result in significant ketosis and acidosis, or there may be only a very minimal. This is because the presence of a small quantity of insulin suppresses the release of counterregulatory hormones and limits the production of ketones.
Sources: en.wikipedia.org
=== Disadvantages === The most substantial disadvantage of the MSi-TDP approach is the inherent 'MW barrier' that limits routine proteoform analysis to species less than ~20-30 kDa; indeed, there is a sharp decrease in the signal/noise ratio beyond the 20-30 kDa mass range, mainly due to the increase in the number of charge states the individual proteoform molecules can have as sequence length increases. While a handful of larger proteoforms have been successfully identified and are routinely measured in biopharma QC (although high concentrations are injected), successful fragmentation for comprehensive sequence coverage remains difficult as only a single charge state is selected for fragmentation, meaning a diluted signal yields fewer fragments. Realistically, although clearly powerful (and influential), MSi-TDP thus assesses only a minor MW-sub-proteome but cannot currently deliver routine, truly comprehensive total proteome analyses as identified species >30kDa are vanishingly few relative to even the estimated size of native proteomes. Efforts to manage the MW limitation have used the somewhat inappropriately named 'middle-down' approach, utilizing select proteases to digest larger proteoforms into manageable fragments; in effect, this is a variation of iTDP if the intact proteoform was first isolated (e.g. by gel or LC). Thus, the lack of intact proteoform fractionation methods, that are integrated with tandem MS, continues to plague substantive advances in MSi-TDP over the last 2-3 decades.
It is not fully clear why rRNA is processed in this way rather than being directly transcribed as mature rRNA, but the sequential steps may have a role in the proper folding of rRNA or in subsequent RP assembly. The products of this processing within the cell nucleus are the four principal types of cytoplasmic rRNA: 28S, 5.8S, 18S, and 5S subunits. and (cite)(cite) (Mammalian cells also have 2 types of mitochondrial rRNA molecules, 12S and 16S.) In humans, as in most eukaryotes, the 18S rRNA is a component of 40S ribosomal subunit, and the 60S large subunit contains three rRNA species (the 5S, 5.8S and 28S in mammals, 25S in plants). 60S rRNA acts as a ribozyme, catalyzing peptide bond formation, while 40S monitors the complementarity between tRNA anticodon and mRNA.
Elements are known with up to the first seven shells occupied. The first shell contains only one orbital, a spherical s orbital. As it is in the first shell, this is called the 1s orbital. This can hold up to two electrons. The second shell similarly contains a 2s orbital, and it also contains three dumbbell-shaped 2p orbitals, and can thus fill up to eight electrons (2×1 + 2×3 = 8). The third shell contains one 3s orbital, three 3p orbitals, and five 3d orbitals, and thus has a capacity of 2×1 + 2×3 + 2×5 = 18. The fourth shell contains one 4s orbital, three 4p orbitals, five 4d orbitals, and seven 4f orbitals, thus leading to a capacity of 2×1 + 2×3 + 2×5 + 2×7 = 32. Higher shells contain more types of orbitals that continue the pattern, but such types of orbitals are not filled in the ground states of known elements. The subshell types are characterized by the quantum numbers. Four numbers describe an orbital in an atom completely: the principal quantum number n, the azimuthal quantum number ℓ (the orbital type), the orbital magnetic quantum number mℓ, and the spin magnetic quantum number ms.
Phototrophs use the products of their photosynthesis as internal food sources and as raw material for the biosynthesis of more complex organic molecules, such as polysaccharides, nucleic acids, and proteins. These are used for their own growth, and also as the basis of the food chains and webs that feed other organisms, including animals such as ourselves. Some important phototrophs, the coccolithophores synthesise hard calcium carbonate scales. A globally significant species of coccolithophore is Emiliania huxleyi whose calcite scales have formed the basis of many sedimentary rocks such as limestone, where what was previously atmospheric carbon can remain fixed for geological timescales. Plants can grow as much as 50% faster in concentrations of 1,000 ppm CO2 when compared with ambient conditions, though this assumes no change in climate and no limitation on other nutrients. Elevated CO2 levels cause increased growth reflected in the harvestable yield of crops, with wheat, rice and soybean all showing increases in yield of 12–14% under elevated CO2 in FACE experiments. Increased atmospheric CO2 concentrations result in fewer stomata developing on plants which leads to reduced water usage and increased water-use efficiency. Studies using FACE have shown that CO2 enrichment leads to decreased concentrations of micronutrients in crop plants. This may have knock-on effects on other parts of ecosystems as herbivores will need to eat more food to gain the same amount of protein.
=== Second generation === In 1976, 24-year-old Rich Snyder became the company president after his father's death. Along with his brother Guy, Rich had begun working in his father's In-N-Outs at an early age. Over the next 20 years, the chain experienced a period of rapid growth under Rich's leadership, expanding to 93 restaurants. In June 1988, In-N-Out opened its 50th location, in Thousand Palms, California. The first location outside of the Los Angeles metropolitan area opened in San Diego County in 1990, the 57th location in the chain. In 1992, In-N-Out opened its first non-Southern California restaurant, in Las Vegas, Nevada. Its first Northern California location opened the following year in Modesto. Expansion then spread to Northern California, including the San Francisco Bay Area, while additional Las Vegas-area restaurants were added. After opening the 93rd In-N-Out store in Fresno, California, on December 15, 1993, Rich Snyder and four other passengers died in a plane crash on approach to John Wayne Airport in Orange County, California. Upon Rich Snyder's death, Guy Snyder assumed the presidency in January 1994 and continued the company's aggressive expansion until he died from an overdose of painkillers in 1999. Under his leadership, In-N-Out's 100th location was opened in Gilroy, California, on November 10, 1994. He was president for nearly six years, expanding In-N-Out from 93 to 140 locations. His mother Esther subsequently took over the presidency.
Sources: en.wikipedia.org
== Responses to foods == Big gastrin is one form of gastrin predominate in circulation after a meal, another major form is called little gastrin (G17). Both forms of gastrin have been isolated from human gastrinoma and hog antral mucosa. G34 is carboxy-amidated and can be sulphated or unsulphated at the tyrosine residues. Binding of gastrin to the receptors in stomach can cause the secretion of hydrochloric acids (HCl), the gastric acid. Duodenal ulcer patients tend to have higher than normal basal and maximal rate of gastric acid secretion, while gastric ulcer patients have lower than normal basal and maximal of gastric acid output. Comparing G34 in normal and peptic ulcer subjects by using radioimmunoassay in fasting serum and after feeding, basal G34 was found similar in normal and duodenal ulcer but raised in gastric ulcer before meal. After a meal, the concentration of G34 was increased in both duodenal ulcer patients and gastric ulcer patients, which significantly higher than normal people.
19 December – UK government minister Tulip Siddiq is named in an investigation into allegations her family embezzled up to £3.9bn from infrastructure projects in Bangladesh. Jane Meagher is voted to replace Cammy Day as leader of Edinburgh City Council, and will lead a Labour minority administration. The Stormont Executive agrees to release its draft budget for the 2025/26 financial year for public consultation, with much of the £19bn budget earmarked for health and education. 20 December – Labour appoint 30 new peers, including former Downing Street chief of staff Sue Gray, while the Conservatives appoint six, including former deputy prime minister Therese Coffey. Peter Mandelson is appointed as the next UK ambassador to the United States. 21 December – US president-elect Donald Trump appoints British TV executive Mark Burnett as the inaugural United States Special Envoy to the United Kingdom. 23 December – Sir Keir Starmer holds talks with Ukrainian president Volodymyr Zelenskyy during which they agreed on the "importance of refining" the UK's training of Ukrainian forces to "bolster" Ukraine's defence. Conservative leader Kemi Badenoch says there is no "quick fix" for the Conservative Party following its election loss, and that she will not be rushed into making policy announcements. 26 December – The Reform UK website, and its leader, Nigel Farage, have said that party membership has passed the 131,680 declared by the Conservatives.
Oganesson is a synthetic chemical element; it has symbol Og and atomic number 118. It was first synthesized in 2002 at the Joint Institute for Nuclear Research (JINR) in Dubna, near Moscow, Russia, by a joint team of Russian and American scientists. In December 2015, it was recognized as one of four new elements by the Joint Working Party of the international scientific bodies IUPAC and IUPAP. It was formally named on 28 November 2016. The name honors the nuclear physicist Yuri Oganessian, who played a leading role in the discovery of the heaviest elements in the periodic table. Oganesson has the highest atomic number and highest atomic mass of all known elements. On the periodic table of the elements it is a p-block element, a member of group 18, and the last member of period 7. Its only known isotope, oganesson-294, is highly radioactive, with a half-life of 0.7 ms. This half-life is too short for chemical studies. Because of relativistic effects, theoretical studies predict that it would be a solid at room temperature, and significantly reactive, unlike the other members of group 18 (the noble gases).
=== In silico technique === Synthetic biology in silico and the various strategies are interconnected. The development of complex designs, whether they are metabolic pathways, fundamental cellular processes, or chassis genomes, is one of the major difficulties faced by the four synthetic-biology methods outlined above. Because of this, synthetic biology has a robust in silico branch, similar to systems biology, that aims to create computational models for the design of common biological components or synthetic circuits, which are essentially simulations of synthetic organisms. The practical application of simulations and models through bioengineering or other fields of synthetic biology is the long-term goal of in silico synthetic biology. Many of the computational simulations of synthetic organisms up to this point possess little to no direct analogy to living things. Due to this, in silico synthetic biology is regarded as a separate group in this article. It is sensible to integrate the five areas under the umbrella of synthetic biology as one unified area of study. Even though they focus on various facets of life, such as metabolic regulation, essential elements, or biochemical makeup, these five strategies all work toward the same end: creating new types of living organisms. Additionally, the varied methodologies begin with numerous methodological approaches, which leads to the diversity of synthetic biology approaches.
Pharmaceutical drugs that are substituted phenethylamines include phenelzine, phenformin, and fanetizole, among many others. The N-methylated derivative of phenethylamine is N-methylphenethylamine. A deuterated isotopologue of phenethylamine with resistance to monoamine oxidase (MAO)-mediated metabolism is α,α-dideuterophenethylamine. A notable prodrug of phenethylamine with sustained effects is N-(2-cyanoethyl)phenethylamine (CEPEA). Other prodrugs of phenethylamine have been described as well. Analogues of phenethylamine with the ethylamine side chain extended or shortened include phenylpropylamine and benzylamine. Another related analogue is phenylalaninol.
Sources: en.wikipedia.org
SR9009 is a synthetic small molecule studied as an agonist of the REV-ERB nuclear receptors. It is not an approved medicine, and its effects in humans are not well characterized.
No. It is a synthetic ligand that binds nuclear receptors, not a steroid or peptide hormone. Its activity depends on receptor binding rather than endocrine secretion.
Clinical evidence is limited. Most published data come from cell and animal experiments. Human safety and efficacy remain uncertain.
Legality depends on the country and the intended use. In many places it is not approved as a medicine and may be sold only as a research chemical. Importation or possession can be restricted, and sports organizations prohibit it.