Stenabolic comes up often in conversation and rarely with the context attached. Here we lay out the basics in order, then work through the practical considerations.
Last reviewed on 2026-03-13. Where a claim depends on a specific study, the study is described rather than over-claimed.
Analytical methods for SR9009 typically rely on liquid chromatography coupled with tandem mass spectrometry. The technique can separate the parent compound from related substances and detect low concentrations in biological matrices. Urine and blood are common samples in anti-doping testing, while in vitro studies may use cell culture media. Rapid metabolism and low expected concentrations make method validation important for reliable identification. Exact metabolite patterns can vary by species and are not fully mapped.
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.
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.
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.
| 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 |
Storage recommendations for SR9009 reference material typically specify a freezer at -20 °C or lower, with protection from moisture and light. Repeated freeze-thaw cycles can degrade small molecules and introduce variability. Stock solutions in dimethyl sulfoxide are often aliquoted to avoid repeated handling. Stability studies may examine degradation under heat, humidity, and light exposure. The compound's thiophene and nitro groups can participate in reactions that alter analytical signals over time, so such changes affect quantitative results.
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.
Laboratory identification of SR9009 typically relies on chromatographic separation coupled to mass spectrometry, often with ultraviolet detection as a secondary check. Nuclear magnetic resonance spectroscopy can confirm molecular structure when a reference standard is available. Because many suppliers sell the compound as a research chemical, independent identity testing is important for experimental reproducibility. A single retention time is not sufficient proof of identity, especially when related compounds may be present. Purity assessments usually report a percentage based on area normalization.
SR9009 is generally described as poorly soluble in water and more soluble in organic solvents such as dimethyl sulfoxide and ethanol. Stock solutions are commonly prepared in an organic solvent before dilution into an aqueous buffer or vehicle. Precipitation can occur if the organic fraction is reduced too quickly or if the final concentration exceeds the compound's solubility limit. Sonication or gentle warming may aid dissolution in some protocols, but excessive heat can promote degradation. Container material and pH can also influence observed solubility.
For long-term storage, SR9009 is typically kept as a solid at low temperature, protected from moisture and light. Desiccated conditions limit hydrolysis, while opaque containers reduce photochemical breakdown. Solutions are less stable than solids and are often stored frozen in aliquots to avoid repeated freeze-thaw cycles. Stability data are not standardized across all suppliers, so users should rely on certificate-of-analysis information when available. Degradation may appear as color change, precipitate, or decreased chromatographic purity.
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.
SR9009 is a synthetic small molecule developed as a REV-ERB agonist. It binds to REV-ERBα and REV-ERBβ, nuclear receptors that help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, the compound alters lipid and glucose handling and influences skeletal muscle oxidative capacity. Its exact effects in humans remain largely uncharacterized because controlled clinical trials have not been reported. The molecule is frequently described in preclinical literature as a metabolic modulator.
Research interest in SR9009 grew from studies showing improved running endurance in mice after short treatment periods. Those experiments linked the compound to increased mitochondrial content and fatty acid oxidation in muscle, but the findings come from animal models and specific dosing schedules. Independent replication has been limited, and the pathways connecting REV-ERB activation to exercise performance are still being mapped. Whether similar responses occur in humans is an open question.
== Toxicity == The short-term lethal dose of melamine is on a par with common table salt, with an LD50 of more than 3 grams per kilogram of bodyweight. U.S. Food and Drug Administration (FDA) scientists explained that when melamine and cyanuric acid are absorbed into the bloodstream, they concentrate and interact in the urine-filled renal tubules, then crystallize and form large numbers of round, yellow crystals, which in turn block and damage the renal cells that line the tubes, causing the kidneys to malfunction and lead to kidney stones, kidney failure, and death. Signs of melamine toxicity can include irritability, blood in the urine, little to no urine, symptoms of kidney infection, or high blood pressure. The European Union set a standard for acceptable human consumption (tolerable daily intake or TDI) of melamine at 0.2 mg per kilogram of body mass (previously 0.5 mg/kg), Canada declared a limit of 0.35 mg/kg, and the US FDA's limit was put at 0.063 mg/kg (previously 0.63 mg/kg). The World Health Organization's food safety director estimated that the amount of melamine a person could stand per day without incurring a bigger health risk, the TDI, was 0.2 mg per kilogram of body mass. Toxicity of melamine can be mediated by intestinal microbiota. In culture, Raoultella terrigena, which rarely colonizes mammalian intestines, was shown to convert melamine to cyanuric acid directly. Rats colonized by R. terrigena showed greater melamine-induced kidney damage compared to those not colonized.
Three groups of physicians independently found this: Biochemical Institute, University of Copenhagen (Dam and Johannes Glavind), University of Iowa Department of Pathology (Emory Warner, Kenneth Brinkhous, and Harry Pratt Smith), and the Mayo Clinic (Hugh Butt, Albert Snell, and Arnold Osterberg). The first published report of successful treatment with vitamin K of life-threatening hemorrhage in a jaundiced patient with prothrombin deficiency was made in 1938 by Smith, Warner, and Brinkhous. The precise function of vitamin K was not discovered until 1974, when prothrombin, a blood coagulation protein, was confirmed to be vitamin K dependent. When the vitamin is present, prothrombin has amino acids near the amino terminus of the protein as γ-carboxyglutamate instead of glutamate, and is able to bind calcium, part of the clotting process.
=== Gastrointestinal === Isotretinoin may cause non-specific gastrointestinal symptoms including nausea, diarrhea, and abdominal pain. The drug is associated with inflammatory bowel disease (IBD)—ulcerative colitis, but not Crohn's disease. There are also reports of people developing irritable bowel syndrome (IBS) and worsening of existing IBS.
Sources: en.wikipedia.org
1250–1336), while discussing Islamic diet and hygiene, gave warnings about how contagion can contaminate water, food, and garments, and could spread through the water supply, and may have implied contagion to be unseen particles. When the Black Death bubonic plague reached Al-Andalus in the 14th century, the Arab physicians Ibn Khatima (c. 1369) and Ibn al-Khatib (1313–1374) hypothesised that infectious diseases were caused by "minute bodies" and described how they can be transmitted through garments, vessels and earrings. Ideas of contagion became more popular in Europe during the Renaissance, particularly through the writing of the Italian physician Girolamo Fracastoro. Anton van Leeuwenhoek (1632–1723) advanced the science of microscopy by being the first to observe microorganisms, allowing for easy visualization of bacteria. In the mid-19th century John Snow and William Budd did important work demonstrating the contagiousness of typhoid and cholera through contaminated water. Both are credited with decreasing epidemics of cholera in their towns by implementing measures to prevent contamination of water. Louis Pasteur proved beyond doubt that certain diseases are caused by infectious agents, and developed a vaccine for rabies. Robert Koch provided the study of infectious diseases with a scientific basis known as Koch's postulates. Edward Jenner, Jonas Salk and Albert Sabin developed effective vaccines for smallpox and polio, which would later result in the eradication and near-eradication of these diseases, respectively.
==== Donald Trump ==== In 1999, Hitchens wrote a profile of future president Donald Trump for The Sunday Herald. Trump had expressed interest in running in the 2000 presidential election as a candidate for the Reform Party. Of Trump, Hitchens said, "Because the man with many monikers in many ways embodies his country and because this election cycle is now so absurd, and so much up for grabs, it is unwise to exclude anything... The best guess has to be that here's a man who hates to be alone, who needs approval and reinforcement, who talks a better game than he plays, who is crude, hyperactive, emotional and optimistic." Hitchens had previously written that Trump demonstrated "nobody is more covetous and greedy than those who have far too much."
==== Procedural differences ==== Except for the columellar incision, the technical and procedural approaches of open rhinoplasty and of closed rhinoplasty are similar; yet closed rhinoplasty procedure features:
Coercive strategies experienced in the delivery room and at work, were also entrenched in the process of clinical trials for birth control pills in 1955. These trials took place in poor areas in Puerto Rico like San Juan. Outside of San Juan, the Common Wealth Health Department controlled more than 19 free clinics. These clinics were reported to be operating at full capacity as approximately 1,000 sterilizations were completed a month. Within these clinics, low socioeconomic women were unknowingly being used as test subjects. Class inequality was apparent during these trials due to educated middle-class women fearing the side effects and refusing to try the new medication while poor-less educated women unknowingly became test subjects out of desperation to avoid pregnancy and ultimately sterilization. On many occurrences, these pills such as Enovid, contained an unusually high quantity of hormones compared to 21st century birth control pills. Doctors disregarded women that reported nausea, blood clotting, and depression. Three women allegedly died during the underground testing of this pill, but their deaths were never put to trial or investigated. In the mainland, testing for this pill, Enovid, continued and was approved in 1957 regardless of dangerous and adverse side effects. Additionally, poor Puerto Rican women in Ryder Memorial Hospital were tested on for six different variations of birth control along with the IUD in the 1960s.
Sources: en.wikipedia.org
It is speculated that these infections exert their effect by critically altering TH1/TH2 regulation. Important elements of newer hygiene hypotheses also include exposure to endotoxins, exposure to pets and growing up on a farm.
The season 17 episode "Institutionalized" reveals that Bishop is from Hinton, Oklahoma, where she was chosen to be the Grand Marshall of its Tater Tot Parade in the past. In "On Fire", Torres and Bishop are hit by a car driven by Xavier Zolotov, with Torres getting the worse of the injuries. After Xavier gets away with the crime due to sovereign immunity, Bishop storms off with the intent of killing him. Xavier is revealed to be dead in the next scene, though Bishop confirms she did not kill him, McGee begins to suspect that Gibbs may have killed him to protect her. In this episode, it is hinted that Bishop has feelings for Torres. In season 18, Bishop is kidnapped and taken hostage during a stakeout by a terrorist, who agrees to exchange her at an airport for one of his men that they presumably have in custody. The whole thing turns out to be a ruse and the plane explodes, but Bishop escapes unharmed, albeit with a few cuts and bruises. In the same week ("1mm"), she and Torres are trapped in cells rigged to blow, with Bishop standing on the pressure plate that triggers the bomb. They both escape unscathed when Gibbs comes to rescue them, but not before she and Torres confess to having feelings for each other. From this episode on, they begin calling each other by their first names, rather than their last.
In addition to the base stations, the Index's headset and controllers feature Inertial Measurement Units (IMUs) that provide rapid updates on movement and orientation. The IMUs track motion at several hundred Hz, but are prone to drift. The Lighthouse system compensates for this drift by using the base stations’ lasers to provide a precise positional reference, integrating this data with the IMU information to maintain accurate tracking even during fast movements. This combination of external base stations and internal sensors on the tracked devices ensures the Valve Index provides accurate and responsive tracking performance.
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.
Legality depends on the country and the intended use. In many places it is not approved as a medicine and may be sold only as a research chemical. Importation or possession can be restricted, and sports organizations prohibit it.