The short version of purity testing fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2026-03-18. Anything still debated is marked as such rather than presented as settled.
In rodent studies, SR9009 has been reported to increase mitochondrial content in skeletal muscle and improve exercise endurance under some conditions. These findings led to popular descriptions such as an exercise mimetic, although that term oversimplifies the biology. Effects vary by dose, timing, tissue, and model. The compound's influence on circadian pathways means that time of administration can matter in experiments. Whether similar metabolic changes occur in humans remains largely unexplored in controlled published trials.
Pharmacokinetic data for SR9009 are limited in published literature. Some reports indicate low oral bioavailability and rapid clearance in animals, which complicates interpretation of exposure and effect. Researchers often use injected routes in preclinical work to achieve measurable systemic levels. Analytical studies rely on mass spectrometry to detect the parent compound and its metabolites. Questions about tissue distribution, active metabolites, and long-term consequences remain open. Species differences in metabolism can affect observed half-life and target engagement.
Quality control for research materials includes identity confirmation by nuclear magnetic resonance and purity assessment by high-performance liquid chromatography. Mass spectrometry provides molecular weight confirmation and can detect related impurities. Purchasers should request a certificate of analysis that lists lot-specific data. Online products advertised for human use often lack such documentation. Distinguishing legitimate research material from mislabeled or contaminated samples is a recurring challenge in independent testing, and independent laboratories may use orthogonal methods to verify identity.
Detection of SR9009 in biological samples usually relies on liquid chromatography coupled to tandem mass spectrometry. This approach separates the compound from matrix components and identifies it by mass transitions. Because SR9009 can undergo metabolism, laboratories often look for both parent drug and specific metabolites. Sample preparation may involve protein precipitation or solid-phase extraction. Method validation examines sensitivity, carryover, and interference from related substances, and reference standards are required for accurate calibration.
| Property | Value | Notes |
|---|---|---|
| Chemical class | Synthetic small-molecule REV-ERB agonist | Not a hormone or natural product |
| Primary targets | REV-ERBα and REV-ERBβ | Nuclear receptors involved in circadian and metabolic regulation |
| Appearance | White to off-white solid | Typical for purified research samples |
| Solubility | Soluble in DMSO and ethanol; low water solubility | Laboratory solubility depends on solvent and purity |
| Common synonyms | SR9009; Stenabolic | Stenabolic is a colloquial name, not a formal chemical name |
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.
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.
SR9009 is supplied as a solid research chemical, often in milligram quantities. Laboratories typically weigh it in a controlled environment because fine powders can disperse. Stock solutions are commonly prepared in dimethyl sulfoxide and stored in small aliquots to reduce freeze-thaw cycles. Personal protective equipment and chemical fume hoods are standard when handling unknown or potent compounds. These practices address laboratory safety rather than human use.
Identity and purity testing for SR9009 commonly uses liquid chromatography coupled with tandem mass spectrometry. This method separates the compound from matrix components and detects it by mass-to-charge transitions, providing sensitive and specific confirmation. Nuclear magnetic resonance spectroscopy can support structural identification, while high-performance liquid chromatography with ultraviolet detection may estimate purity. Because online products labeled as SR9009 may contain other substances or no active compound at all, independent verification is important in research settings. Certificates of analysis are useful but not a substitute for in-house testing.
Laboratory samples of SR9009 are typically supplied as a white to off-white powder. The compound dissolves readily in organic solvents such as dimethyl sulfoxide and ethanol, while its solubility in water is low. Because of this solubility profile, researchers often prepare concentrated stock solutions in an organic solvent before diluting them into aqueous assay buffers. Light exposure, moisture, and repeated freeze-thaw cycles can degrade many small molecules, so handling procedures usually aim to minimize these factors. Purity is commonly checked before use.
Beer–Lambert law Also Beer–Lambert–Bouguer law or simply Beer's law. A chemical law stating that the amount of light absorbed by a solution is proportional to the solution's concentration; or more specifically that the absorbance (
Volunteer Piper, Commemorative events in Greece. For services to Commemorations and Veterans in Greece. Brenda Patricia Heather-Latu. British Honorary Consul, Apia, Samoa. For services to British Nationals in Samoa. Robert Charles Jackson Hicks. Surgical Team Lead, Hernia International Carpenter and Ghana Healthcare Partners, Leyaata Hospital, Ghana; Consultant Surgeon, Northampton General Hospital. For Services to Health in Northern Ghana. Gregory John Holland. Chief Executive Officer, British Chamber of Commerce, Santiago, Chile. For services to UK/Chile Bilateral Trade and Investment. Daren Hughes. Team Leader, Foreign, Commonwealth and Development Office. For services to British Foreign Policy. Dr. Brad James Irwin. Head of Global Engagement, Natural History Museum. For services to UK Culture and the Arts. Paula Mary Jack. Justice Adviser, Northern Ireland Co-operation Overseas. For services to Child Justice Reform, to Human Rights and to International Relations in Bahrain. Ivor Cosimo Jencks. Lately General Manager, Hongkong Land Group and Head of Commercial Development, Commercial Property, South Asia. For services to Business, to Charity and to Sustainable Development in Vietnam. Jennifer Anne Tudor Larby. Executive Officer, British Legion Kenya. For services to the British and Commonwealth ex-services community in Kenya. Dr. Matthew Linkie. Regional Technical Director, Wildlife Conservation Society. For services to Biodiversity Conservation in Indonesia. Michael Ralph Lubbock.
== CLIA identification number == CLIA identification numbers are 10-digit alphanumeric unique identifiers issued by the CLIA data system to identify a CLIA laboratory. This is assigned at the time of initial entry of the CLIA application and included with the mailing of the remittance fee coupon.
==== Acute myocardial infarction ==== Beta blockers are indicated for the treatment of acute myocardial infarctions. During a myocardial infarction, systemic stress causes an increase in circulating catecholamines. This results an increase in heart rate and blood pressure, therefore increasing myocardial oxygen demand. Beta blockers competitively inhibit catecholamines acting on the β1-adrenergic receptors, thus reducing these detrimental effects and resulting in reduced myocardial oxygen consumption and demand. A 2019 Cochrane review compared beta blockers with placebo or no intervention, it found that beta blockers probably reduced the short-term risk of reinfarction and the long-term risk of all-cause mortality and cardiovascular mortality. The review identified that beta blockers likely had little to no impact on short-term all-cause mortality and cardiovascular mortality.
Testosterone can be administered by intramuscular injection either as an aqueous suspension of testosterone or as an oil solution or aqueous suspension of testosterone esters such as testosterone propionate, testosterone enanthate, testosterone cypionate, testosterone undecanoate, and testosterone isobutyrate. An even longer-acting testosterone ester that was developed but ultimately never marketed is testosterone buciclate. These preparations are prodrugs of progesterone that have a long-lasting depot effect when injected into muscle or fat, ranging from days to months in duration. The bioavailability of drugs that are administered intramuscularly is generally almost 95%. As oil solutions by intramuscular injection, the elimination half-lives of testosterone esters are 0.8 days for testosterone propionate, 4.5 days for testosterone enanthate, 20.9 days (in tea seed oil) and 33.9 days (in caster oil) for testosterone undecanoate, and 29.5 days for testosterone buciclate. The pharmacokinetics of testosterone cypionate are said to be the same as those of testosterone enanthate, with "extremely comparable" patterns of testosterone release. Due to their varying and different elimination half-lives, the different intramuscular testosterone esters are administered with differing frequencies. Testosterone propionate is injected two to three times per week, testosterone enanthate and testosterone cypionate are injected once every two to four weeks, and testosterone undecanoate and testosterone buciclate are injected once every 10 to 14 weeks.
Sources: en.wikipedia.org
== Operations == Hetero Group employs over 30,000 people and has operations in 145+ countries. Hetero Group’s subsidiaries include Hetero Healthcare and Hetero Research Foundation, and also foreign subsidiaries such as Camber Pharmaceuticals in the United States and Southeast Asia, Amarox Pharma Global in Europe and GCC, and Seven Pharma in Latin America. Hetero also operates Asia's Largest API SEZ manufacturing complex for APIs, with over 1000 reactors.
Ernest Beutler (September 30, 1928 – October 5, 2008) was a German-born American hematologist and biomedical scientist. He made important discoveries about the causes of a number of diseases, including anemias, Gaucher disease, disorders of iron metabolism and Tay–Sachs disease. He was also among the first scientists to identify X-inactivation as the genetic basis of tissue mosaicism in female mammals, and pioneered a number of medical treatments, including bone marrow transplantation techniques. Beutler was the Chairman of Medicine at the City of Hope Medical Center in Duarte, CA from 1959 until 1979 and served as a Professor, then Chairman, of the Department of Molecular and Experimental Medicine at The Scripps Research Institute in La Jolla, California from 1979 until 2008.
Athletes have been looking for drugs to enhance their athletic abilities since the Olympics started in Ancient Greece. For many years, AAS have been by far the most-detected doping substances in IOC-accredited laboratories. Anabolic steroids are classified as Schedule III controlled substances in many countries, meaning that AAS have recognized medical use but are also recognized as having a potential for abuse and dependence, leading to their regulation and control. In countries where AAS are controlled substances, there is often a black market in which smuggled, clandestinely manufactured or even counterfeit drugs are sold to users.
"One strain isolated from tissue debrided from a compound fracture of the tibia was particularly active. We named this growth-antagonistic strain for the patient, Tracy I. When cell-free filtrates of broth cultures of this bacillus proved to possess strong antibiotic activity and to be non-toxic, further study seemed warranted. We have called this active principle 'bacitracin'." Bacitracin was approved by the US FDA in 1948.
Chronic social defeat stress produces a counterintuitive long-lasting downregulation of prodynorphin mRNA levels in the NAcc (occurring by day 10 of chronic exposure), and this downregulation is reversed by chronic treatment with standard antidepressant medication (imipramine). Despite this molecular downregulation, behavioral signs of stress-induced dysphoria, anhedonia, and anxiety persist and even intensify with repeated stress exposure, indicating that the coupling between dynorphin release and KOR phosphorylation, as well as the downstream consequences of KOR activation, may become sensitized through counter-adaptations in post-receptor signaling or in competing inhibitory circuits. This process involves: § Signaling after internalisation.
Sources: en.wikipedia.org
In 1804 the Balmis Expedition, an official Spanish mission commanded by Francisco Javier de Balmis, sailed to spread the vaccine throughout the Spanish Empire, first to the Canary Islands and on to Spanish Central America. While his deputy, José Salvany, took vaccine to the west and east coasts of Spanish South America, Balmis sailed to Manila in the Philippines and on to Canton and Macao on the Chinese coast. He returned to Spain in 1806. The vaccine was not carried in the form of flasks, but in the form of 22 orphaned boys, who were 'carriers' of the live cowpox virus. After arrival, "other Spanish governors and doctors used enslaved girls to move the virus between islands, using lymph fluid harvested from them to inoculate their local populations". Napoleon was an early proponent of smallpox vaccination and ordered that army recruits be given the vaccine. Additionally a vaccination program was created for the French Army and his Imperial Guard. In 1811 he had his son, Napoleon II, vaccinated after his birth. By 1815 about half of French children were vaccinated and by the end of the Napoleonic Empire smallpox deaths accounted for 1.8% of deaths, as opposed to the 4.8% of deaths it accounted for at the time of the French Revolution. On March 26, 1806, the Swiss canton Thurgau became the first state in the world to introduce compulsory smallpox vaccinations, by order of the cantonal councillor Jakob Christoph Scherb. Half a year later, Elisa Bonaparte issued a corresponding order for her Principality of Lucca and Piombino on 25 December 1806.
There are additives, such as STP Oil Treatment, and some racing oils such as PurOl, PennGrade 1, and Valvoline VR-1, Kixx Hydraulic Oil which are available in the retail market with the necessary amount of ZDDP for engines using increased valve spring pressures.
=== Origin of oxygenic photosynthesis === Prokaryotic algae, i.e., cyanobacteria, are the only group of organisms where oxygenic photosynthesis has evolved. The oldest undisputed fossil evidence of cyanobacteria is dated at 2100 million years ago, although stromatolites, associated with cyanobacterial biofilms, appear as early as 3500 million years ago in the fossil record.
=== In alcoholic beverages === Kirsch fruit brandy is sometimes produced via the distillation of fermented cherry juice. Cherry juice is also used as an ingredient in beer. For example, Samuel Smith Old Brewery's cherry beer contains 17% of organic cherry juice, and Three Floyds Brewing produces its Battle of Charro II Imperial Brett IPA using cherry juice as an ingredient. Cherry cider has also been brewed by some companies using cherry juice. Sweetened cherry juice is sometimes used in the production of kriek lambic, a distinctively sour, cherry beer style from Belgium.
Sources: en.wikipedia.org
It is a synthetic research compound that activates REV-ERB nuclear receptors. It is not an approved drug or dietary supplement. Most information comes from cell and animal studies.
It binds REV-ERBα and REV-ERBβ and changes transcription of metabolic genes. This can affect circadian rhythm, lipid use, and mitochondrial function. The full downstream effects are still under study.
No. Some rodent studies show increased endurance, but controlled human trials are lacking. Claims about human performance are not established by published evidence.
Liquid chromatography-tandem mass spectrometry is a common approach. It can detect the parent compound and its metabolites in biological matrices.