Everything below concerns bioavailability. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Updated 2026-03-07. Numbers and descriptions here follow the published literature rather than marketing material.
Regulatory treatment of SR9009 reflects its investigational status. The compound has no approved human therapeutic indication, and sports authorities prohibit its use. It appears on anti-doping lists as a non-approved substance or metabolic modulator, depending on the list version. Products sold online as research chemicals are not quality-controlled medicines, so their identity and purity can differ from the label. Such products may also contain unlisted compounds, which complicates both testing and safety assessment.
Scientific discussion of SR9009 often separates animal evidence from human anecdote. Rodent studies provide controlled data on endurance, metabolism, and gene expression, but they use specific strains, doses, and treatment durations. Human reports are mostly uncontrolled and cannot establish cause and effect. Open questions include oral bioavailability, tissue distribution, metabolic stability, and long-term effects. Review articles generally call for more rigorous pharmacokinetic and safety research before any clinical use could be considered.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ, also called NR1D1 and NR1D2. These receptors help regulate circadian rhythms and metabolic gene programs. The compound was developed for laboratory research, not as an approved therapeutic. Its identity is distinct from steroid hormones and selective androgen receptor modulators. Scientific interest centers on how REV-ERB activation changes gene expression in cells and animal models.
At the molecular level, SR9009 binds the ligand-binding domain of REV-ERB and strengthens recruitment of corepressor proteins such as NCoR and HDAC3. This increases repression of target genes, including Bmal1 and other clock-controlled and metabolic genes. In rodent studies, such changes have been linked to altered lipid handling, glucose metabolism, and energy expenditure. The precise chain of events between receptor binding and whole-body effects remains an active area of research. Findings in animals do not automatically translate to humans.
Laboratory studies often administer SR9009 by injection because oral absorption appears poor in rodents. Reported pharmacokinetic properties include rapid metabolism and low systemic exposure after oral dosing. Human pharmacokinetic data are sparse, so absorption, distribution, metabolism, and excretion in people are not well defined. Some research explores related REV-ERB compounds with improved drug-like properties. Regulatory approval for any REV-ERB agonist as a human medicine has not been granted to date.
| Property | Value | Notes |
|---|---|---|
| Regulatory status | Not approved for human use | Investigational status in most countries |
| Sports status | Prohibited by WADA | Classified as non-approved or metabolic modulator |
| Common analytical method | LC-MS/MS | Used for trace detection in biological samples |
| Typical test matrices | Urine and blood | Sample choice depends on testing program |
| Human trial data | None published | Effects and safety are not established |
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.
Detection of SR9009 in biological samples usually employs liquid chromatography coupled with tandem mass spectrometry. This method can identify the parent compound and sometimes metabolites in urine or blood. Because exposure can be low and clearance may be rapid, sample timing and limits of detection matter. Laboratories validate assays for sensitivity and specificity. Results are interpreted alongside chain-of-custody and quality-control records. Urine is the common matrix for anti-doping analysis, while blood may be used in research settings.
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 a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not an approved medicine and has no established human therapeutic use. The compound appears in scientific literature as a tool for probing circadian and metabolic regulation. Online sellers often label it as a research chemical, sometimes using the nickname Stenabolic. Its chemical identity is distinct from selective androgen receptor modulators, stimulants, and peroxisome proliferator-activated receptor delta agonists. Researchers use it mainly in cell and animal experiments.
At the molecular level, SR9009 binds REV-ERBα and REV-ERBβ and alters their repressive activity on target genes. These nuclear receptors help regulate the circadian clock, lipid synthesis, glucose metabolism, and inflammatory pathways. By changing transcription, the compound can shift the timing or magnitude of downstream metabolic processes in model systems. It does not act through androgen receptors or adenosine receptors, which distinguishes it from several substances sold for athletic performance. Whether the same transcriptional changes occur in humans at tolerable exposures remains an open question because controlled human studies are lacking.
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.
Excessive radiation can be harmful. Therefore, dosing must be strictly controlled to achieve growth stimulation, while avoiding excessive singlet oxygen that may be harmful to cells. LED stimulation cannot pass through the skin, only laser light can penetrate deeper tissues and stimulate brain areas. The penetration depth of white and LED light into the skin increases with increasing wavelength from the ultraviolet to the visible light range, and then decreases again in the infrared range. This depth increases if the thickness of the stratum corneum decreases. White light and LED radiation can only penetrate 0.0017 mm to 5 mm of tissue. At wavelengths of 450 nm and 650 nm only 1% of the light reaches approximately 1.6 mm and very little reaches 5 mm. The action spectrum for tissue regeneration and repair consist of more than one wavelength, such that laser and LED light sources may offer some disadvantages, possibly destroying healthy cells. Links between neuronal activity and mental processes are still research questions as is whether the laser reaches only the neuronal structures that benefit from treatment. Insufficient information from clinical trials compares the effectiveness of different types of devices or device parameters (wavelengths, power output, session time, area of actuation).
== Disorders == Bradykinin is also thought to be the cause of the dry cough in some patients on widely prescribed angiotensin-converting enzyme (ACE) inhibitor drugs. It is thought that bradykinin is converted to inactive metabolites by ACE, therefore inhibition of this enzyme leads to increased levels of bradykinin; increased bradykinin sensitizes somatosensory fibers and thus causes hyperalgesia. Bradykinin may mediate this via pro-inflammatory peptides (e.g. substance P, neuropeptide Y) and a local release of histamine. In severe cases, the elevation of bradykinin may result in angioedema, a medical emergency. People of African descent have up to five times increased risk of ACE inhibitor induced angioedema due to hereditary predisposing risk factors such as hereditary angioedema. This refractory cough is a common cause for stopping ACE inhibitor therapy. Overactivation of bradykinin is thought to play a role in a rare disease called hereditary angioedema. Low levels of bradykinin in the body correlate with obesity in adolescents; it has been proposed that bradykinin can be used as a biomarker for metabolic syndrome. Bradykinins have been implicated in a number of cancer progression processes. Increased levels of bradykinins resulting from ACE inhibitor use have been associated with increased lung cancer risks. Bradykinins have been implicated in cell proliferation and migration in gastric cancers, and bradykinin antagonists have been investigated as anti-cancer agents.
Sources: en.wikipedia.org
== Social issues == To address social issues arising from the casinos, such as problem gambling, the National Council on Problem Gambling (NCPG) was created in 2005. In 2017, controversies surrounding association football club operations, which had been known to host slot machine rooms to fund their sporting activities for more than the past two decades prior to 2014, arose that called for additional safeguards to prevent gambling addicts from frequenting such places from Members of Parliament (MP) who had also raised concerns over current regulations following investigation of Tiong Bahru Football Club, an semi-professional football club in the National Football League, the second tier of national football league system. generated approximately 10 times more revenue from their 29-slot machine operations than what the Tampines Rovers, a professional football club in the S.League, had reportedly earned in their 2013/2014 financial year. Other noted cases included Sinchi Football Club, which continued to operate a clubhouse with six slot machines despite having not played in any S.League football game since 2005 and prompted a need to ensure profits from slot operations were going towards funding a club's core purpose--their football activities.
==== Cancer ==== The incidence of lymphoma is increased, although it is uncommon and associated with the chronic inflammation, not the treatment of RA. The risk of non-melanoma skin cancer is increased in people with RA compared to the general population, an association possibly due to the use of immunosuppression agents for treating RA.
York Chow, the health secretary of Hong Kong, said he thought animal feeds might be the source of the contamination and announced that the Hong Kong Centre for Food Safety would henceforward be testing all mainland Chinese pork, farmed fish, animal feed, chicken meat, eggs, and offal products for melamine. As of July 2010, Chinese authorities were still reporting some seizures of melamine-contaminated dairy product in some provinces, though it was unclear whether these new contaminations constituted wholly new adulterations or were the result of illegal reuse of material from the 2008 adulterations. On characterization and treatment of urinary stones in affected infants, The New England Journal of Medicine printed an editorial in March 2009, along with reports on cases from Beijing, Hong Kong and Taipei. Urinary calculi specimens were collected from 15 cases treated in Beijing and were analyzed as unknown objects for their components at Beijing Institute of Microchemistry using infrared spectroscopy, nuclear magnetic resonance, and high performance liquid chromatography. The result of the analysis showed that the calculus was composed of melamine and uric acid, and the molecular ratio of uric acid to melamine was around 2:1.
Sources: en.wikipedia.org
== Adverse effects == Adverse effects associated with adenosine administration are primarily due to its activation of adenosine receptors on vascular tissue, resulting in vasodilation. Side effects of adenosine include skin flushing, lightheadedness, nausea, sweating, nervousness, numbness, and a sense of impending doom. These effects are typically very short-lived due to adenosine's rapid metabolism and short half-life. Less common, but more serious, cardiovascular effects can occur, such as cardiac arrhythmias (including premature atrial and ventricular contractions and atrioventricular (AV) block), hypotension, cardiac ischemia, and prolonged asystole.
=== Apple Inc. === Starbucks has partnered with Apple Inc. to collaborate on selling music as part of the "coffeehouse experience". In October 2006, Apple added a Starbucks Entertainment area to the iTunes Store, selling music similar to that played in Starbucks stores. In September 2007, Apple announced that customers would be able to browse the iTunes Store at Starbucks via Wi-Fi in the US—with no requirement to log into the Wi-Fi network—targeted at iPhone, iPod Touch, iPad, and MacBook users. The iTunes Store automatically detects recent songs playing in a Starbucks and offer users the opportunity to download the tracks. Some stores feature LCD screens with the artist name, song, and album information of the current song playing. This feature was rolled out in Seattle, New York City, and the San Francisco Bay Area, and was offered in limited markets during 2007–2008. During the fall of 2007, Starbucks also began to sell digital downloads of certain albums through iTunes. Starbucks gave away 37 different songs for free download through iTunes as part of the "Song of the Day" promotion in 2007, and a free "Pick of the Week" download is available from the App Store.
== Applications == The aldehyde tag is a technique which recently found increased application because of the introduction of bioorthogonal chemical reporters. Bioorthogonal agents contain functional groups such as azides or cyclooctynes for coupling which are not naturally found in the cell. Due to their foreignness, they seem inert and do not disrupt the native metabolism, Fig. 3 gives an overview of possible labeling methods for formylglycine. For example, it can be coupled to probes such as biotin or a protein tag like Flag that are useful for purification and detection. Furthermore, fluorophores can be directly conjugated for live cell imaging. The conjugation of polyethylene glycol (PEG) chains to potential drug candidates extends the stability against proteases in body fluids and at the same time reduces renal clearance and immunogenicity. The first application described here, deals with the formation of protein-protein conjugates through bioorthogonal probes. Since, the aldehyde tag is strictly speaking not a true bioorthogonal agent as it can be found in various metabolites, it can cause cross reactions during protein labeling. However, coupling bioorthogonal probes such as azides or cyclooctynes can be applied to overcome this obstacle. As a second application, the coupling of glycan moieties to proteins is presented here. It can be utilised in the strategy of chemically introduced glycosylation patterns.
Sources: en.wikipedia.org
No. It is an investigational compound without approved therapeutic indications. It is sold for research purposes only in many jurisdictions.
Sports authorities prohibit it because it is not approved for human use and has potential performance-enhancing effects. It appears on anti-doping lists under non-approved or metabolic modulator categories.
Detection usually uses liquid chromatography-tandem mass spectrometry. The method targets the parent compound or its metabolites in urine or blood.
SR9009 is a synthetic research compound that activates the REV-ERBα and REV-ERBβ nuclear receptors. It is not an approved drug and has no established human therapeutic use. Most published biological data come from cell and rodent studies.