A practical reference on LC-MS/MS: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
This page was last updated on 2026-07-11 and is reviewed periodically as new material appears.
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.
Stability depends on physical form, temperature, light exposure, and solvent. Solid SR9009 is generally stored cold and dry, with protection from light to limit degradation. Dimethyl sulfoxide stocks are common for laboratory work, but repeated freeze-thaw cycles can reduce compound integrity. Aqueous solutions may be less stable than organic stocks, and the ethyl ester in the structure can be susceptible to hydrolysis under certain conditions. Researchers typically validate storage conditions and recheck purity before quantitative experiments, especially when using archived material.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Common synonyms | SR9009; Stenabolic | Nickname is not a chemical name. |
| Typical analytical method | LC-MS/MS | Often with isotope-labeled internal standard. |
| Storage temperature | -20 °C | Desiccated and protected from light. |
| Solution stability | DMSO stock; avoid freeze-thaw | Store at -20 to -80 °C. |
| Regulatory status | Not approved; varies by country | May be restricted as research chemical. |
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.
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.
Handling practices for SR9009 focus on minimizing degradation and contamination. The solid is generally stored desiccated at or below -20 °C, protected from light and moisture. Stock solutions are often prepared in dimethyl sulfoxide or ethanol, then aliquoted to avoid repeated freeze–thaw cycles. Aqueous solubility is low, so formulations for animal studies may require cosolvents or suspending agents. Personnel should follow institutional chemical safety procedures, because toxicological data for humans are incomplete.
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.
In Hong Kong, the Swire Coca-Cola Company markets a yellow Schweppes Cream Soda. Some people enjoy cream soda in a 1:1 ratio with fresh milk. In Japan, "cream soda" (クリームソーダ) is a term used for an ice cream float topped with a scoop of vanilla ice cream, commonly flavored with green melon-flavored soda (メロンソーダ).
=== Lithium === Lithium which is used in the treatment of bipolar disorder was the first natural GSK-3 inhibitor discovered. It inhibits GSK-3 directly by competition with magnesium ions and indirectly by phosphorylation and auto-regulation of serine. Lithium has been found to have insulin-like effects on glucose metabolism, including stimulation of glycogen synthesis in fat cells, skin, and muscles, increasing glucose uptake, and activation of GS activity. In addition to inhibition of GSK-3, it also inhibits other enzymes involved in the regulation of glucose metabolisms, such as myo-inositol-1-monophosphatase and 1,6 bisphosphatase. Also, it has shown therapeutic benefit in Alzheimer's and other neurodegenerative diseases such as epileptic neurodegeneration.
Beyond minor actions against French imperial interests, the Napoleonic Wars were much less global in their scope than preceding conflicts such as the Seven Years' War, which historians term a "world war".
The polyps of stony corals have six-fold symmetry. In stony corals, the tentacles are cylindrical and taper to a point, but in soft corals they are pinnate with side branches known as pinnules. In some tropical species, these are reduced to mere stubs and in some, they are fused to give a paddle-like appearance. Coral skeletons are biocomposites (mineral + organics) of calcium carbonate, in the form of calcite or aragonite. In scleractinian corals, "centers of calcification" and fibers are clearly distinct structures differing with respect to both morphology and chemical compositions of the crystalline units. The organic matrices extracted from diverse species are acidic, and comprise proteins, sulphated sugars and lipids; they are species specific. The soluble organic matrices of the skeletons allow to differentiate zooxanthellae and non-zooxanthellae specimens.
Sources: en.wikipedia.org
== Pseudo-alkali metals == Many other substances are similar to the alkali metals in their tendency to form monopositive cations. Analogously to the pseudohalogens, they have sometimes been called "pseudo-alkali metals". These substances include some elements and many more polyatomic ions; the polyatomic ions are especially similar to the alkali metals in their large size and weak polarising power.
Anti-CCP is part of the 2010 ACR/EULAR classification criteria for Rheumatoid Arthritis. Anti-CCP positivity is also a good prognostic marker for future radiographic damage, and possibly a marker to B-cell therapy responses including rituximab. Combination of anti-CCP with other serological markers like rheumatoid factor, 14-3-3η (YWHAH) not only enhances the diagnostic capture rate but together with acute phase reactants either in early disease or at the time of diagnosis may be useful in predicting future outcomes.
== Visitors and media appearances == Cantelmo invited several people to his ranch. One was podcaster and video producer Alex Hall, who recorded an episode of his podcast *The Digital Fireside* with Cantelmo on May 22, 2019, and later visited the property to film. Hall described a large backyard with San Pedro cacti, chickens, and ducks, and noted that Cantelmo was using DMT multiple times per day during the visit. Hall also observed that Cantelmo attempted to persuade strangers in public to try DMT. Another visitor was a podcaster known as Tyger, who flew from Oregon to Los Angeles in May 2019. Cantelmo paid for equipment and travel and appeared on Tyger’s podcast. Tyger later described the interior of the house as decorated with large abstract paintings and noted that Cantelmo employed local homeless people to work in the garden. During the visit Cantelmo took Tyger to a performance by Joe Rogan but did not approach Rogan himself. Cantelmo also interacted with an individual known on Reddit as u/craigsyoga, based in Australia, who helped maintain a website aggregating Cantelmo’s ideas and later appeared on a podcast discussing the period. Some people who knew Cantelmo stated that this individual encouraged continued spending and promotion.
Sources: en.wikipedia.org
Kissinger went to Paris on 3 May to meet Tho with orders from Nixon that North Vietnam must "settle or else!" Nixon complained that Kissinger was "obsessed" with the need for a peace treaty while he charged that he now wished he followed his instincts to bomb North Vietnam in 1970, saying if he had done so, the war would have been over by now. On 2 May 1972, the PAVN had captured Quang Tri, an important provincial city in South Vietnam, and as a result of this victory, Tho was in no mood for a compromise. Though Kissinger in general shared Nixon's determination to be tough, he was afraid that the president would overreact and destroy the budding détente with the Soviet Union and China by striking too hard at North Vietnam. Moreover, after the rupture caused by the Cambodian incursion, Kissinger was trying hard to rebuild his relations with the liberal American intelligentsia, saying he did want to become "this administration's Walt Rostow". Kissinger's predecessor, Rostow, was once a professor at Harvard, Oxford, MIT and Cambridge, but by serving as the National Security Advisor, he had been shunned by the Ivy League universities and ended up at the lowly University of Texas, a fate that Kissinger was determined to avoid. On 5 May 1972, Nixon ordered the U.S. Air Force to start bombing Hanoi and Haiphong and on 8 May ordered the U.S. Navy to mine the coast of North Vietnam.
== Gold nanoparticles in skin care and cosmetics == The utilization of gold in skin care and cosmetics dates back at least to the 1st century B.C in Egypt, where Queen Cleopatra is said to have used masks made from gold to maintain her skin complexion. It was said that she used it every night to enhance her complexion and improve the suppleness of her skin. Nowadays, gold has made its way into various skincare products such as lotion and cream, as well as skincare treatments such as facial masks. Gold in skincare products are usually in the form of colloidal gold, or more commonly called nanogold. These nanoparticles ranges in size from 5 nm to 400 nm. This section will discuss about the effect of gold nanoparticle in wound healing application together with the effect of gold in lotion and cream products.
== Disruption of traditional logistics and supply chain management == The shipping and logistics industry has long been viewed as conservative and slow-to-change, in part due to complex relationships within global shipping and transportation networks, difficult documentation and customs requirements, lack of transparency among involved parties, and obstacles to adapting quickly to sudden economic changes. Recent developments in freight technology are working to modernize and simplify freight transport. According to a report from the U.S. Department of Transportation, intelligent freight technologies have multifaceted benefits in shipping and logistics. These include increased operational flexibility and efficiency due to better planning and schedule adherence, better utilization of people and equipment, reduction of non-productive waiting times, shorter processing times, and increased shipper confidence. Transactional application programming interfaces (API) and distributed ledger technology are expanding in the shipping and logistics sector to reduce extensive paperwork, monitor conditions and location of freight and goods in transport and make this information available to involved parties, and increase transparency across the supply chain.
=== Ratings and awards === In 2005 Hibiscus was one of three restaurants to be awarded three-stars by the Egon Ronay Restaurant Guide, along with The Waterside Inn and Restaurant Tom Aikens, and was named Ronay's Restaurant of the Year. The restaurant made its first entry in the World's 50 Best Restaurants in 2010, ranked in 49th place and one of three British restaurants in the list; the following year it moved up to 43rd. The Good Food Guide ranked Hibiscus as the eighth-best restaurant in the UK in its 2013 guide. The restaurant has been given five AA Rosettes by The Automobile Association.
Sources: en.wikipedia.org
The most common approach is liquid chromatography-tandem mass spectrometry, often after extraction from blood, urine, or tissue. Ultraviolet detection and nuclear magnetic resonance spectroscopy are used mainly for reference material characterization. Isotope-labeled internal standards improve accuracy.
Solid material is usually kept at -20 °C, desiccated, and protected from light. Dimethyl sulfoxide stocks should be stored cold and subjected to minimal freeze-thaw cycles. Aqueous solutions are generally less stable and should be prepared fresh when possible.
Legality depends on the country and the intended use. It is not an approved medicine, and some places restrict or ban sales for human consumption. Buyers should verify local rules and product documentation before procurement.
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.