This is a working overview of WADA, written for readers who want more than a one-paragraph summary but less than a textbook.
This page was last updated on 2025-09-17 and is reviewed periodically as new material appears.
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.
| 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 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.
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.
Regulatory agencies have not approved SR9009 for human therapeutic use. It is typically sold as a research chemical with labels stating that it is not for human consumption. The World Anti-Doping Agency prohibits the substance in sport, generally under the category of non-approved substances. Customs and national laws may restrict importation, sale, or possession. Product quality and legal status can vary by country and vendor, and therapeutic claims are not permitted in regulated advertising because the compound lacks approval.
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.
== Discovery and synthesis == Djenkolic acid was first isolated by Van Veen and Hyman in 1933 from the urine of the natives of Java who had eaten the djenkol bean and were suffering from poisoning. They then isolated the djenkolic acid crystals by treating the djenkol beans with barium hydroxide at 30°C for a prolonged period. Du Vigneaud and Patterson managed to synthesize djenkolic acid by condensation of methylene chloride with 2 moles of L-cysteine in liquid ammonia. Later on, Armstrong and du Vigneaud prepared djenkolic acid by the direct combination of 1 mole of formaldehyde with 2 moles of L-cysteine in a strongly acidic solution.
All of these effects scale with pennation angle; greater angles lead to greater force due to increased fiber packing and PCSA, but with greater losses in shortening speed and excursion. Types of pennate muscle are unipennate, bipennate, and multipennate. A unipennate muscle has similarly angled fibers that are on one side of a tendon. A bipennate muscle has fibers on two sides of a tendon. Multipennate muscles have fibers that are oriented at multiple angles along the force-generating axis, and this is the most general and common architecture.
== Investigation == Between March and June 2022, unusually high infant mortality rates occurred at a neonatal nursing unit in the Ramón Castillo Neonatal Hospital in Córdoba, Argentina. A series of investigations initially pointed to a hospital-acquired infection or malpractice. The provincial government then intervened at the Ramón Castillo Neonatal Hospital after these reports of healthy babies dying without cause. Prosecutor Raúl Garzón labelled the case as "enormously grave" but initially insisted that they could have been either cases of malpractice or hospital-acquired infections, and no accusations were made. Nonetheless, Garzón ordered a search warrant on the hospital and relieved twenty employees from their duties. Police and prosecutors began to suspect that there had been foul play when no more deaths occurred after the suspension of those twenty employees. On the same day that the hospital was searched, authorities suspended the head of the hospital. The investigation was prompted by a doctor who refused to sign the death certificates of two healthy babies who died on the same day in June 2022; allegedly the two last babies to die from an external cause (murder). As the search warrant was served, the prosecution asked for the exhumation of the remains of the deceased babies, whose autopsies showed abnormal levels of potassium, which medical investigators attributed to being deliberately injected into the babies, as said levels of potassium are not normally produced by the body.
High levels of prolactin are uncommon in people with gynecomastia. If β-hCG levels are abnormally high, then ultrasound of the testicles should be performed to check for signs of a hormone-secreting testicular tumor. Markers of testicular, adrenal, or other tumors, such as urinary 17-ketosteroid or serum dehydroepiandrosterone, may also be checked if there is evidence of hormonal imbalance on physical examination. If this evaluation does not reveal the cause of gynecomastia, it is considered to be idiopathic gynecomastia (of unclear cause).
Sources: en.wikipedia.org
A large problem in using transcriptomic/genomic analysis in venomic studies is the lack of full genome sequences of many venomous animals. However, this is a fleeting problem due to the amount of full genome projects involved in sequencing venomous animals such as the ‘venomous system genome project’ (Launched in 2003). Through these projects, various fields of study such as ecological/evolutionary studies and venomic studies can provide supporting information and systematic analysis of toxins.
== Revocation of nursing license == After the incident, the Tennessee Board of Nursing reviewed Vaught's case and initially rendered "a decision that [the] matter did not merit further action." However, In September 2019, the Tennessee Department of Health's Board of Nursing reversed their decision, charging Vaught with three infractions: unprofessional conduct, abandoning or neglecting a patient who required care, and failing to maintain an accurate patient record. In July 2021, the nursing board revoked Vaught's license and fined her $3,000. During her testimony, she took responsibility for the error, but also described procedural issues at the hospital. "Overriding was something we did as a part of our practice every day. You couldn't get a bag of fluids for a patient without using an override function." The Institute for Safe Medication Practices called the board decision "disturbing and unjust." It alleged that the decision reflected "significant outcome bias," "inability to differentiate between human error, at-risk behavior, and reckless behavior," "lack of a thorough investigation," and other shortcomings.
=== Post-independence (1946–1962) === The first elections after independence were the 1947 parliamentary election, with the People's Party winning a plurality in the Chamber of Deputies, but no absolute majority. In 1949, a series of military coups led to the dissolution of the Chamber of Deputies and constitutional suspensions. A Constituent Assembly elected in 1949 drafted the 1950 constitution, which strengthened parliamentary powers. Adib al-Shishakli's 1951 coup dissolved the Chamber of Deputies, and his 1953 election, with only 16% voter turnout, reconstituted the Chamber of Deputies as a 82-member legislative body under a presidential system. After his ouster in 1954, parliamentary rule was restored, with the People's Party and Ba'ath Party gaining influence. In 1958, the Chamber of Deputies was replaced by the UAR's National Assembly, where Syrians held one-third of the seats. Following Syria's withdrawal, the 1961 election restored parliamentary democracy.
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.