certificate of analysis is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Last reviewed on 2026-08-01. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
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.
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.
| 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 |
SR9009 is generally described as poorly soluble in water and more soluble in organic solvents such as dimethyl sulfoxide and ethanol. Stock solutions are commonly prepared in an organic solvent before dilution into an aqueous buffer or vehicle. Precipitation can occur if the organic fraction is reduced too quickly or if the final concentration exceeds the compound's solubility limit. Sonication or gentle warming may aid dissolution in some protocols, but excessive heat can promote degradation. Container material and pH can also influence observed solubility.
For long-term storage, SR9009 is typically kept as a solid at low temperature, protected from moisture and light. Desiccated conditions limit hydrolysis, while opaque containers reduce photochemical breakdown. Solutions are less stable than solids and are often stored frozen in aliquots to avoid repeated freeze-thaw cycles. Stability data are not standardized across all suppliers, so users should rely on certificate-of-analysis information when available. Degradation may appear as color change, precipitate, or decreased chromatographic purity.
Most published work on SR9009 consists of preclinical studies. It is widely sold as a research chemical, a category that does not imply safety, efficacy, or pharmaceutical-grade quality. Sports anti-doping organizations have listed SR9009 as a prohibited substance, and its presence in an athlete sample can lead to sanctions. Legal status differs by country; in several jurisdictions it is not approved for human consumption and may be treated as an unapproved new drug.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not a steroid, peptide, or natural hormone. In scientific literature, it appears under the code SR9009 and in non-scientific contexts as Stenabolic. The compound was identified through chemical screening efforts aimed at targeting circadian clock components. Its status remains investigational, and no regulatory agency has approved it as a human medicine.
Regulatory treatment of SR9009 varies by country and region. It is not approved as a pharmaceutical, and several jurisdictions restrict its sale for human consumption. Some authorities classify it as a research chemical, a prescription-only substance, or a prohibited performance-enhancing agent in sport. Purchasers may encounter certificates of analysis, but these documents do not guarantee identity, purity, or legality. In research settings, institutional safety reviews and controlled procurement help ensure that materials are handled under appropriate oversight. The absence of harmonized rules means that legal status can change and requires verification.
Analytical identification of SR9009 typically relies on liquid chromatography coupled with tandem mass spectrometry. In biological samples, researchers first separate the compound from matrix components using protein precipitation, liquid-liquid extraction, or solid-phase extraction. High-performance liquid chromatography with ultraviolet detection and nuclear magnetic resonance spectroscopy can support structural confirmation of reference materials. Because SR9009 is a small, relatively lipophilic molecule, reverse-phase columns and acidic mobile phases are common. Laboratories often include isotope-labeled internal standards to improve quantification and to correct for ion suppression.
Breakthrough T1D (formerly JDRF) is a type 1 diabetes (T1D) research and advocacy organization. Breakthrough T1D funds research for the development of new therapies and treatments for type 1 diabetes. The organization advocates for federal research funding toward new technologies and treatments and works with regulatory and policy officials to disburse funds. Breakthrough T1D also has partnerships with academia, industry, and clinicians to accelerate research into potential cures for T1D. The organization has been described as "the leading global organization funding T1D research".
Gonadorelin is a gonadotropin-releasing hormone agonist (GnRH agonist) which is used in fertility medicine and to treat amenorrhea and hypogonadism. It is also used in veterinary medicine. The medication is a form of the endogenous GnRH and is identical to it in chemical structure. It is given by injection into a blood vessel or fat or as a nasal spray.
=== CD200 === Basophil function is inhibited by CD200. Herpesvirus-6, herpesvirus-7, and herpesvirus-8 produce a CD200 homolog which also inhibits basophil function. This suggests that basophils may play a role in the immune response to these viruses. The role of basophils in the immune response to these viruses is further supported by findings that the CD200 receptor is expressed more frequently in basophils than in other circulating leukocytes.
At first sight this appears to offer a means of obtaining the standard molar enthalpy of the reaction by studying the variation of K with temperature. In practice, however, the method is unreliable because error propagation almost always gives very large errors on the values calculated in this way.
13 May The PAVN 6th Regiment and K-12 Sapper Battalion attacked the 2nd Battalion, 501st Infantry Regiment, 2nd Battalion, 11th Artillery and 2nd Battalion, 319th Artillery on Firebase Airborne killing 22 U.S. for the loss of 40 PAVN killed. Units of the PAVN 7th Infantry Division attacked Firebase Gela, the assault was repulsed for the loss of three U.S. and an estimated 39 PAVN soldiers killed.
Sources: en.wikipedia.org
=== Sjögren syndrome === Sjögren syndrome (SS) is an autoimmune rheumatic disease of the exocrine glands. Increased incidence of SS after childbirth suggests a relationship between SS and pregnancy, and this led to the hypothesis that fetal microchimerism may be involved in SS pathogenesis. Studies showed the presence of Y-chromosome-positive fetal cells in minor salivary glands in 11 of 20 women with SS but in only one of eight normal controls. Fetal cells in salivary glands suggest that they may be involved in the development of SS.
=== Midlands Black Rhino Conservancy === The Mid West Rhinos maintain close links with the Midlands Black Rhino Conservancy. The conservancy is made up of several adjoining farms that give free rein to a number of the severely endangered Black Rhino. Each year the Mid West Rhinos stage the Midlands Black Rhino Conservancy T20 tournament. The tournament has grown from humble beginnings and now boasts participating teams from South Africa and Zambia. The proceeds from the tournament and other fundraising activities go directly to the conservancy.
=== Recovery === Initially, university officials considered removing the pumpkin due to its potential to fall and cause lethal damage, but later decided to "let the pumpkin ooze down the side of the tower, rather than risk someone's life or go to a great deal of expense just to retrieve a pumpkin". Plans were made to retrieve the pumpkin on March 13, 1998, the final day before spring break, and 157 days after the pumpkin first appeared. This entailed the university's provost, Don Michael Randel, ascending next to the tower in a crane bucket to retrieve the pumpkin, intended to be viewed by hundreds of spectators as well as news media gathered around the tower. Celebrations would have included the sale of pumpkin ice cream, commemorative T-shirts, and an ambulance which would have transported the pumpkin to a laboratory where a team of horticultural researchers would have analyzed it. A practice run was performed with the crane around 45 minutes prior to when the pumpkin was intended to be removed; at 9:17 am, either a gust of wind or error from the crane operator caused the crane's empty cage to knock the pumpkin off, and it fell 20 feet (6.1 m) onto a scaffold that had been put up to repair the tower. 200 people had gathered by 10 am; they watched Randel instead use the crane to retrieve the pumpkin from the scaffold and give it to a Cornell scientist. Two weeks later, through analysis of "microscopic slides, videotapes and photographs," a panel of plant biology professors declared the object's validity as a pumpkin.
== Origins == In 1927, Sakel, who had recently qualified as a medical doctor in Vienna and was working in a psychiatric clinic in Berlin, began to use low (sub-coma) doses of insulin to treat drug addicts and psychotics, and when one of the patients experienced improved mental clarity after having slipped into an accidental coma, Sakel reasoned the treatment might work for mentally ill patients. Having returned to Vienna, he treated schizophrenic patients with larger doses of insulin in order to deliberately produce coma and sometimes convulsions. Sakel made his results public in 1933, and his methods were soon taken up by other psychiatrists. Joseph Wortis, after seeing Sakel practice it in 1935, introduced it to the US. British psychiatrists from the Board of Control visited Vienna in 1935 and 1936, and by 1938, 31 hospitals in England and Wales had insulin treatment units. In 1936, Sakel moved to New York and promoted the use of insulin coma treatment in US psychiatric hospitals. By the late 1940s, the majority of psychiatric hospitals in the US were using insulin coma treatment.
Sources: en.wikipedia.org
This resulted in a surge of both Croatian nationalism and Slovene nationalism in response and the collapse of the League of Communists of Yugoslavia in 1990, the victory of nationalists in multi-party elections in most of Yugoslavia's constituent republics and eventually civil war between the various nationalities beginning in 1991. Yugoslavia was dissolved in 1992. The Soviet Union itself collapsed between 1990 and 1991, with a rise of secessionist nationalism and a political power dispute between Gorbachev and Boris Yeltsin, the new leader of the Russian Federation. With the Soviet Union collapsing, Gorbachev prepared the country to become a loose federation of independent states called the Commonwealth of Independent States. Hardline Marxist–Leninist leaders in the military reacted to Gorbachev's policies with the August Coup of 1991 in which hardline Marxist–Leninist military leaders overthrew Gorbachev and seized control of the government. This regime only lasted briefly as widespread popular opposition erupted in street protests and refused to submit. Gorbachev was restored to power, but the various Soviet republics were now set for independence. On 25 December 1991, Gorbachev officially announced the dissolution of the Soviet Union, ending the existence of the world's first Marxist–Leninist-led state.
=== Disease mechanism === Exactly how disturbances of production and aggregation of the Aβ peptide give rise to the pathology of Alzheimer's disease is not known. The amyloid hypothesis (also known as the 'amyloid cascade hypothesis') posits that the accumulation of abnormally shaped Aβ peptides is the central event triggering the sequence of changes that eventually lead to neurodegeneration and dementia. Misfolded Aβ accumulates in the brain because it causes normal Aβ molecules to similarly misfold by a prion-like 'seeding' mechanism. The aggregated Aβ takes the form of small oligomers (which are particularly toxic to neurons) and amyloid fibrils, the long polymers that are the main components of Aβ plaques. Some researchers have argued that the amyloid fibrils bind up smaller oligomers and thus protect brain cells from the injurious effects of the oligomers. However, the plaques are not benign inasmuch as they are associated with abnormal neuronal processes and local inflammation. Whatever the relative influence of Aβ oligomers and fibrils, the presence of aggregated Aβ is associated with the disruption of neuronal metabolism and various other changes such as inflammation. Aβ also selectively builds up in mitochondria in the cells of Alzheimer's-affected brains, and it inhibits certain enzyme functions and the utilisation of glucose by neurons. Evidence supports Aβ as playing a central role in the pathogenesis of Alzheimer's disease.
There is a multilevel urine pregnancy test (MLPT) that measures hCG levels semiquantitatively. The hCG levels are measured at <25, 25 to 99, 100 to 499, 500 to 1999, 2000 to 9999, and >10,000 mIU/mL. This test has utility for determining the success of medication abortion.
==== Ovarian production ==== Progesterone is the major progestogen produced by the corpus luteum of the ovary in all mammalian species. Luteal cells possess the necessary enzymes to convert cholesterol to pregnenolone, which is subsequently converted into progesterone. Progesterone is highest in the diestrus phase of the estrous cycle.
=== LSD substitute overdose === Although LSD is relatively safe in overdose, 25-NB (NBOMe) psychedelics like 25I-NBOMe and 25B-NBOMe are often sold as "LSD" and are highly toxic in overdose, with many reported severe intoxications and deaths. Owing to their high potency analogous to LSD, these drugs are also regularly sold as "LSD" in blotter papers. Fatalities involved in NBOMe intoxication suggest that a significant number of individuals ingested the substance which they believed was LSD, and researchers report that "users familiar with LSD may have a false sense of security when ingesting NBOMe inadvertently". Researchers state that the alleged physiological toxicity of LSD is likely due to psychoactive substances other than LSD. NBOMe compounds are reported to have a bitter taste, are not active orally, and are usually taken sublingually. When NBOMes are administered sublingually, numbness of the tongue and mouth followed by a metallic chemical taste was observed, and researchers describe this physical side effect as one of the main discriminants between NBOMe compounds and LSD. Despite its high potency, recreational doses of LSD have only produced low incidents of acute toxicity, but NBOMe compounds have extremely different safety profiles. Testing with Ehrlich's reagent gives a positive result for LSD and a negative result for NBOMe compounds.
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.
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.