This is a working overview of LC-MS/MS, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2026-03-25 and is reviewed periodically as new material appears.
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.
Research interest in SR9009 grew from studies showing improved running endurance in mice after short treatment periods. Those experiments linked the compound to increased mitochondrial content and fatty acid oxidation in muscle, but the findings come from animal models and specific dosing schedules. Independent replication has been limited, and the pathways connecting REV-ERB activation to exercise performance are still being mapped. Whether similar responses occur in humans is an open question.
SR9009 is often grouped with compounds studied for circadian and metabolic regulation rather than with classical anabolic steroids. Its interactions with nuclear receptors differ from those of androgen receptor ligands, and its proposed mechanisms involve transcriptional control rather than direct hormone signaling. Some sources classify it as a metabolic modulator because of observed effects on energy utilization. The distinction matters for regulation and for interpreting research results across different compound classes.
| 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 |
Handling recommendations for SR9009 in a laboratory setting include storing the solid at low temperature, protected from light and moisture. The compound is often dissolved in dimethyl sulfoxide or ethanol for experiments. Solutions should be prepared with appropriate personal protective equipment and disposed of according to local rules. Stability data for long-term storage are limited, so stock solutions are typically kept cold and used within defined periods. Records of preparation date and concentration support reproducibility.
SR9009 is not approved as a medicine by major regulatory agencies. It is commonly sold as a research chemical, a category that may fall outside customary drug approval and quality rules. In sports, the World Anti-Doping Agency lists SR9009 as a prohibited substance. Athletes who use it can face sanctions if it is detected in a sample. Legal status varies by country, and importation may be restricted. Enforcement practices differ across borders.
For his appearance on the heavily collaborative track "Back on the Block", a composition by jazz musician Quincy Jones that "attempt[ed] to bring together black musical styles from jazz to soul to funk to rap", Ice-T won a Grammy Award for the Best Rap Performance by a Duo or Group, an award shared by others who worked on the track including Jones and fellow jazz musician Ray Charles. Controversy later surrounded Body Count over its song "Cop Killer". The rock song was intended to speak from the viewpoint of a criminal getting revenge on racist, brutal cops. Ice-T's rock song infuriated government officials, the National Rifle Association of America, and various police advocacy groups. Consequently, Time Warner Music refused to release Ice-T's upcoming album Home Invasion because of the controversy surrounding "Cop Killer". Ice-T suggested that the furor over the song was an overreaction, telling journalist Chuck Philips "...they've done movies about nurse killers and teacher killers and student killers. Arnold Schwarzenegger blew away dozens of cops as the Terminator. But I don't hear anybody complaining about that". In the same interview, Ice-T suggested to Philips that the misunderstanding of Cop Killer, the misclassification of it as a rap song (not a rock song), and the attempts to censor it had racial overtones: "The Supreme Court says it's OK for a white man to burn a cross in public. But nobody wants a black man to write a record about a cop killer". Ice-T split amicably with Sire/Warner Bros. Records after a dispute over the artwork of the album Home Invasion.
== Toxicity and harm potential == NBOMe compounds are often associated with life-threatening toxicity and death. Studies on NBOMe family of compounds demonstrated that the substances exhibit neurotoxic and cardiotoxic activity. Reports of autonomic dysfunction remains prevalent with NBOMe compounds, with most individuals experiencing sympathomimetic toxicity such as vasoconstriction, hypertension and tachycardia in addition to hallucinations. Other symptoms of toxidrome include agitation or aggression, seizure, hyperthermia, diaphoresis, hypertonia, rhabdomyolysis, and death. Researchers report that NBOMe intoxication frequently display signs of serotonin syndrome. The likelihood of seizure is higher in NBOMes compared to other psychedelics. NBOMe and NBOHs are regularly sold as LSD in blotter papers, which have a bitter taste and different safety profiles. Despite high potency, recreational doses of LSD have only produced low incidents of acute toxicity. 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". While most fatalities are due to the physical effects of the drug, there have also been reports of death due to self-harm and suicide under the influence of the substance. Given limited documentation of NBOMe consumption, the long-term effects of the substance remain unknown. NBOMe compounds are not active orally, and are usually taken sublingually.
Polysulfated glycosaminoglycan (PSGAG; sold under the brand name Adequan) is an injectable drug for dogs and horses that is used to alleviate the limpness, pain, and lowered range of motion caused by arthritis. It is made of repeat disaccharide units (comprising hexosamine and hexuronic acid), and is similar to glycosaminoglycans already present in the cartilage; PSGAG thus easily integrates itself there. In vitro studies have shown it to inhibit the enzymes that degrade cartilage and bone, as well as suppress inflammation and stimulate the synthesis of replacement cartilage. While it can cause an increased risk of bleeding, it is relatively safe and has a high LD50. PSGAG is one of the most widely prescribed joint treatments for horses. While it is widely used, some studies still show conflicting results in terms of efficacy, causing some to claim that PSGAG is not solely responsible for the significant mitigation of arthritis seen in success cases.
Half-Life 2 is a science fiction first-person shooter game and the sequel to Half-Life. While remaining similar in style to the original, Half-Life 2 introduces new concepts to the series such as physics-based puzzles and vehicle sections. The game takes place in the fictional City 17 and surrounding areas as the player takes on the role of scientist Gordon Freeman. Freeman is thrust into a dystopian environment in which the aftermath of the events of Half-Life have come to bear fully upon human society, and he is forced to fight against increasingly unfavorable odds in order to survive. In his struggle, he is joined by various acquaintances, including former Black Mesa colleagues, oppressed citizens of City 17, and the Vortigaunts, all of whom later prove to be valuable allies. Half-Life 2 received critical acclaim, including 35 Game of the Year awards, when it was originally released for Windows in 2004. As of December 3, 2008, over 6.5 million copies of Half-Life 2 have been sold at retail. Although Steam sales figures are unknown, their rate surpassed retail's in mid-2008 and they are significantly more profitable per-unit.
Sources: en.wikipedia.org
This is a list of Trotskyist internationals. It includes all of the many political internationals which self-identify as Trotskyist. Of the organizations listed, two claim to be the original Fourth International founded in 1938: the reunified Fourth International (USFI) and the International Committee of the Fourth International (ICFI). The Fourth International split into two factions 1953 over the question of historic perspective, with the International Secretariat (ISFI) turning in favour of deep entryism and supporting petty-bourgeois nationalist movements in less developed countries, and the International Committee (ICFI) upholding the need to form revolutionary parties. The factions reunited in 1963 resulting in the formation of reunified Fourth International (USFI), while parts of the ICFI did not. Both the USFI and ICFI went on to fragment further, giving rise to several new internationals. Certain organizations which claim to be Trotskyist make no attempt to claim any relationship to the Fourth International in an organizational sense and argue that it no longer exists. Some claim to represent a continuity from the Fourth International or to have re-established it: for example the Fourth International (ICR) International Centre/Center of Reconstruction, also known as the FI (La Verité), also calls itself the "Fourth International". The various organizations listed here range in size from those having thousands of adherents in dozens of countries to tendencies which can barely claim a dozen members in three or four countries.
Endless Chain Ridge is a 16-kilometre-long (9.9-mile), 2,867-metre-high (9,406-foot), mountainous ridge located in Jasper National Park, in the Canadian Rockies of Alberta, Canada. The ridge is situated at the southern end of the Maligne Range, and east of the confluence of the Sunwapta River with the Athabasca River. Seen from the Icefields Parkway, the ridge is relatively unimpressive, but from the east side it appears as a rugged chain of peaks, all quite difficult to climb.
Evelyn Greechan, Senior Traffic Warden, City of Glasgow Police. For services to Road Safety. Ian Greenlaw, Support Grade Band 1, Her Majesty's Customs and Excise. Brian Gregory, Facilities Manager, Sussex Police. For services to the Police. Sylvia Gladys Grove, Office Support Grade Band 2, Home Office. Alan Joseph Gruar, Training Manager, Lucas Aerospace, Wolverhampton Training Centre, LucasVarity plc. For services to Training. Leslie Gurney. For services to the community in Stockport, Cheshire. Jessie Haggarty. For services to Highland Dancing. Jonathan Ian Hague, Detective Inspector, Metropolitan Police. For services to the Police. Alfred Hall. For services to the World Ploughing Organisation. Arthur Charles Hall. For services to the community in Walton-on-Thames, Surrey. Eileen Hall, Administrative Officer, Department of Social Security. Edna Hilda Knight Hallatt, Governor, Newcastle-under-Lyme School, Staffordshire. For services to Education. Mae Hamilton, Administrative Officer, Home Office. Brenda Margaret Hancock, lately Personal Secretary, Health and Safety Executive, Department of the Environment Angela Kathenne Hanley, Training Manager, First Aid Centre, London Transport. For services to Public Transport. Hilda Harding. For services to Mind and to the Elderly and Disadvantaged in Sutton, Surrey. Anthony Shannon Harman. For services to Agriculture and to the British Charolais Cattle Society. Susan Gladys Harper, Practice Nurse (Sister), Roslin Medical Centre, Midlothian. For services to Health Care. David Harris.
=== Mood changes === Research is mixed on whether antimineralocorticoids such as spironolactone have positive or negative effects on mood. In any case, spironolactone might have the capacity to increase the risk of depressive symptoms. However, a 2017 hybrid systematic review found that the incidence of depression in women treated with spironolactone for acne was less than 1%. Likewise, a 10-year observational study found that the incidence of depression in 196 transgender women taking high-dose spironolactone in combination with an estrogen was less than 1%.
The men had been captured in 2022 during fighting in the Donbas and were released in a series of prisoner exchanges. Latvia pledged 2 million euros ($2.15 million) to support the reconstruction of Chernihiv, according to its City Council. The funds were to be used in projects such as buying school equipment and restoring water and sewage systems. The United States Defense Security Cooperation Agency has authorised the sale of a NASAMS system to Ukraine valued at $285 million.
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.
It is a synthetic REV-ERB agonist used mainly in preclinical research. It is not an approved medicine for human use.