The short version of SR9009 fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-04-02 and is reviewed periodically as new material appears.
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.
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.
Research interest in SR9009 grew from studies of circadian biology and metabolic disease. Preclinical reports describe effects on exercise capacity, muscle metabolism, and blood lipid levels in rodents, but these findings come from controlled laboratory settings. The compound has low oral bioavailability in animals, which limits systemic exposure after swallowing. Investigators often use injected routes in experiments to achieve measurable plasma concentrations. Human clinical data are sparse, no approved therapeutic product exists, and whether animal effects translate to humans remains an open question.
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.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white solid | Visual inspection is not sufficient for identity. |
| Solubility | Soluble in DMSO and ethanol | Low solubility in water. |
| Typical storage | -20 °C, desiccated, dark | Protect from repeated temperature changes. |
| Common analytical method | LC-MS or HPLC-UV | Reference standard required for comparison. |
| Common synonyms | SR9009; Stenabolic; REV-ERB agonist | Vendor naming may vary. |
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.
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.
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.
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.
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.
A typical 10-in-1 food parcel included canned items as butter-substitute spread, soluble coffee, pudding, meat units, jam, evaporated milk, and vegetables as well as biscuits, cereal, beverages, candy, salt, and sugar.
=== Supercritical water hydrolysis === Supercritical hydrolysis is a method of converting all biomass polysaccharides as well the associated lignin into low molecular compounds by contacting with water alone under supercritical conditions. The supercritical water, acts as a solvent, a supplier of bond-breaking thermal energy, a heat transfer agent and as a source of hydrogen atoms. All polysaccharides are converted into simple sugars in near-quantitative yield in a second or less. The aliphatic inter-ring linkages of lignin are also readily cleaved into free radicals that are stabilized by hydrogen originating from the water. The aromatic rings of the lignin are unaffected under short reaction times so that the lignin-derived products are low molecular weight mixed phenols. To take advantage of the very short reaction times needed for cleavage a continuous reaction system must be devised. The amount of water heated to a supercritical state is thereby minimized.
=== Plants === In green plants, oxygen is a byproduct generated during photosynthesis, and exits through stomata, root cell walls, and other routes. Other materials that are exuded by some plants — resin, saps, latex, are forced from the interior of the plant by hydrostatic pressures inside the plant and by absorptive forces of plant cells. These latter processes do not require added energy, as they act passively. During the pre-abscission phase, deciduous plants excrete by leaf-fall.
Whites owned most of the best farmland, and had far superior education, wages and homes, but the schooling, healthcare, infrastructure and salaries available to black Rhodesians were nevertheless very good by African standards. In the wider Imperial context, Southern Rhodesia occupied a category unto itself because of the "special quasi-independent status" it held. The Dominions Office, formed in 1925 to handle British relations with the dominions of Australia, Canada, New Zealand, Newfoundland, South Africa and the Irish Free State (the Statute of Westminster 1931 delineated the rights of the dominions more clearly in that year), also dealt with Southern Rhodesia, and Imperial Conferences included the Southern Rhodesian Prime Minister alongside those of the dominions from 1932. This unique arrangement continued following the advent of Commonwealth Prime Ministers' Conferences in 1944. Southern Rhodesians of all races fought for Britain in the Second World War, and the colonial government gradually received more autonomy regarding external affairs. During the immediate post-war years, Southern Rhodesian politicians generally thought that they were as good as independent as they were, and that full autonomy in the form of dominionship would make little difference to them. Post-war immigration to Southern Rhodesia, mainly from Britain, Ireland and South Africa, caused the white community to swell from 68,954 in 1941 to 221,504 in 1961. The black population grew from 1,400,000 to 3,550,000 over the same period.
Sources: en.wikipedia.org
=== Allergies === Diphenhydramine is effective in the treatment of allergies. As of 2007, it was the most commonly used antihistamine for acute allergic reactions in the emergency department. By injection, it is often used in addition to epinephrine for anaphylaxis, although as of 2007 its use for this purpose had not been properly studied. Its use is only recommended once acute symptoms have improved.
2 October A U.S. Navy C-2A Greyhound crashed into the Gulf of Tonkin on a flight from Naval Air Station Cubi Point to the aircraft carrier USS Constellation killing all 27 on board. Hanna E. Crews a Donut Dolly died of head injuries after a vehicle accident near Bien Hoa, becoming the first of three Donut Dollies to die in the war.
Stark Law is a set of United States federal laws that prohibit physician self-referral, specifically a referral by a physician of a Medicare or Medicaid patient to an entity for the provision of designated health services ("DHS") if the physician (or an immediate family member) has a financial relationship with that entity. The term "referral" means "the request by a physician for the item or service" for Medicare Part B services and "the request or establishment of a plan of care by a physician which includes the provision of the designated health service" for all other services. DHS includes "clinical laboratory services"; "physical therapy services"; "occupational therapy services"; "radiology services, including magnetic resonance imaging, computerized axial tomography scans, and ultrasound services"; "radiation therapy services and supplies"; "durable medical equipment and supplies"; "parenteral and enteral nutrients, equipment, and supplies"; "prosthetics, orthotics, and prosthetic devices and supplies"; "home health services"; "outpatient prescription drugs"; "inpatient and outpatient hospital services"; and "outpatient speech-language pathology services." A "financial relationship" includes ownership, investment interest, and compensation arrangements. The Stark Law contains several exceptions, including physician services, in-office ancillary services, ownership in publicly traded securities and mutual funds, rental of office space and equipment, and bona fide employment relationship.
=== Enzyme probes === To investigate enzymatic activity as opposed to total protein, activity-based reagents have been developed to label the enzymatically active form of proteins (see Activity-based proteomics). For example, serine hydrolase- and cysteine protease-inhibitors have been converted to suicide inhibitors. This strategy enhances the ability to selectively analyze low abundance constituents through direct targeting. Enzyme activity can also be monitored through converted substrate. Identification of enzyme substrates is a problem of significant difficulty in proteomics and is vital to the understanding of signal transduction pathways in cells. A method that has been developed uses "analog-sensitive" kinases to label substrates using an unnatural ATP analog, facilitating visualization and identification through a unique handle.
== Materials == Microneedles (MNs) consist of micro-sized needles arrays that are made of various materials exhibiting different characteristics and are suitable in the synthesis of different types of MNs. The selection of materials for formation of MNs greatly depends on the strength of skin penetration, manufacturing method, and rate of drug release. Silicon is the first material used for the production of MNs. While the flexible nature of silicon allows easy manufacture of different sizes and types of MNs, silicon MNs can easily fracture during insertion in the skin. On the contrary, MNs made of metals like stainless steel, titanium, and aluminum, are non-toxic and possess strong mechanical properties to penetrate the skin without breakage. Nevertheless, metal MNs may cause allergic effects in some patients and it creates non-biodegradable wastes. Polymer is also regarded as a promising material for MNs due to its good biocompatibility and low toxicity. Water-soluble polymers are more commonly used within the big polymer group and MNs tip breaking is more likely compared to MNs made of silicon and metal. Therefore, polymer is a more suitable material for dissolving MNs or hydrogel-forming MNs.
Sources: en.wikipedia.org
== Biomolecular structure == A fibrous protein is composed of long, repetitive chains of amino acids that are intertwined to form structures resembling rods or wires. These proteins are often insoluble in water, meaning they do not dissolve. This insolubility is due to the arrangement of their amino acids; many of the amino acids that are exposed on the surface of the protein are hydrophobic (water-repelling), which causes the proteins to clump together, or aggregate, in a watery environment. A fibrous protein's peptide sequence often has limited residues with repeats; these can form unusual secondary structures, such as a collagen helix. The structures often feature cross-links between chains (e.g., cys-cys disulfide bonds between keratin chains). Fibrous proteins tend not to denature as easily as globular proteins. Miroshnikov et al. (1998) are among the researchers who have attempted to synthesize fibrous proteins.
A DNA triple helix is made up of three separate DNA strands, each oriented with the sugar/phosphate backbone on the outside of the helix and the bases on the inside of the helix. The bases are the part of the molecule closest to the triple helix's axis, and the backbone is the part of the molecule farthest away from the axis. The third strand occupies the major groove of relatively normal duplex DNA. The bases in triplex DNA are arranged to match up according to a Hoogsteen base pairing scheme. Similarly, RNA triple helices are formed as a result of a single stranded RNA forming hydrogen bonds with an RNA duplex; the duplex consists of Watson-Crick base pairing while the third strand binds via Hoogsteen base pairing.
== Medical uses == Methocarbamol is a muscle relaxant used to treat acute, painful musculoskeletal spasms in a variety of musculoskeletal conditions. However, there is limited and inconsistent published research on the medication's efficacy and safety in treating musculoskeletal conditions, primarily neck and back pain. Methocarbamol injection may have a beneficial effect in the control of the neuromuscular spasms of tetanus. It does not, however, replace the current treatment regimen. It is not useful in chronic neurological disorders, such as cerebral palsy or other dyskinesias. Currently, there is some suggestion that muscle relaxants may improve the symptoms of rheumatoid arthritis; however, there is insufficient data to prove its effectiveness or to answer concerns regarding optimal dosing, choice of muscle relaxant, adverse effects, and functional status.
== Drug interaction == Pioglitazone/metformin may interact with furosemide, nifedipine, cationic drugs (e.g., amiloride, digoxin, morphine, procainamide, quinidine, quinine, ranitidine, triamterene, trimethoprim, and vancomycin) and certain drugs tend to produce hyperglycemia and may lead to loss of glycemic control (e.g., thiazides and other diuretics, corticosteroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, calcium channel blocking drugs, and isoniazid).
Liu had seized the Chengdu Arsenal in 1925 after Yang Sen's downfall, but to appease the city's other warlords, he announced plans to convert it into a mechanical repair shop rather than a weapons factory. To oversee this process, he appointed his brother Liu Wencheng, who had previously run a distillery, as its manager. Liu Wencheng would also later be appointed to several managerial positions in industrial enterprises. The Chengdu Arsenal would eventually be converted into a mint, increasing Liu Wenhui's money supply. Liu's brother Wencheng used his position in Chengdu to purchase houses and land, expanding his family's real estate holdings. He purchased so much property that his rivals nicknamed him "Liu Half-City", implying he owned half of Chengdu. Liu Wenhui's army continued growing due to money and industrial supplies from his brothers. Over the course of 1926, he attacked and disarmed the forces of Yang Chunfang in January and Lü Chao in April, taking control of Lü's territories in southern Sichuan. To formalize the division of Chengdu, Liu, Deng, and Tian established a joint command in December 1926 with Liu as director. In December 1926, communist forces under Liu Bocheng launched the Luzhou Uprising in Sichuan as part of the Northern Expedition. Liu Bocheng's forces successfully took control of the city from warlord Lai Xinhui. Control of Luzhou was coveted by several neighboring warlords, who had also begun besieging the city. To prevent his rivals from capturing Luzhou, Liu dispatched his friend Leng Yingdong to surround the city in April 1927.
Sources: en.wikipedia.org
Liquid chromatography–mass spectrometry is common for identity and purity checks. High-performance liquid chromatography with ultraviolet detection can also be used. Both methods require a suitable reference standard.
The solid is usually kept desiccated at -20 °C or lower and protected from light. Stock solutions are aliquoted to limit freeze–thaw cycles. Aqueous solutions are not generally recommended for long-term storage.
Laws differ by country and by intended use. It is not an approved medicine, and many vendors sell it as a research chemical. Purchasers are responsible for confirming local restrictions.
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.