If you have been reading about research chemical and want a single page that covers the useful parts, this is it: definitions, context, how it is studied, and the questions that come up repeatedly.
Updated 2026-04-10. Numbers and descriptions here follow the published literature rather than marketing material.
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 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.
Regulatory treatment of SR9009 varies by country and context. It is not approved as a therapeutic drug by agencies such as the United States Food and Drug Administration or the European Medicines Agency. Sports authorities list it as a prohibited substance; the World Anti-Doping Agency classifies it among hormone and metabolic modulators. Legal status for personal possession or sale differs across jurisdictions, and some countries may restrict it under analog or research chemical laws. Buyers who seek verified material often rely on independent laboratory testing because online product labels may not match contents.
Laboratory samples of SR9009 are typically handled as research chemicals rather than pharmaceuticals. Suppliers usually state that the material is for research use only and not for human or veterinary administration. Storage recommendations generally call for a freezer at approximately −20 °C, protection from light, and a desiccated environment. The solid is often described as a white to off-white powder. Solubility is commonly reported in organic solvents such as dimethyl sulfoxide and ethanol, with low solubility in water.
Analytical identification and purity assessment often use high-performance liquid chromatography with ultraviolet detection or mass spectrometry. Liquid chromatography–tandem mass spectrometry is used to detect and quantify SR9009 in biological matrices, including urine and blood, for anti-doping or pharmacokinetic studies. Nuclear magnetic resonance spectroscopy can confirm molecular structure. Stability depends on form and storage: the solid is generally more stable than solutions, and repeated freeze–thaw cycles may degrade samples. Purity is typically reported as a percentage from a certificate of analysis.
| Property | Value | Notes |
|---|---|---|
| Synonyms | SR9009; Stenabolic | Stenabolic is an informal name |
| Common form | Crystalline powder | Supplied in milligram to gram quantities |
| Long-term storage | -20 °C, desiccated, protected from light | Reduces degradation |
| Detection technique | LC-MS/MS | Common in anti-doping and research analysis |
| Regulatory status | Prohibited in sport by WADA | Not approved for human therapeutic use |
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 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.
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.
Storage conditions for research-grade SR9009 generally involve a freezer at approximately minus twenty degrees Celsius, sometimes lower for long-term preservation. Containers should remain tightly closed and protected from light. Desiccants may be used to limit moisture uptake. Solutions are often stored in aliquots to avoid repeated warming and cooling. Stability data for the compound under various conditions are limited, so laboratories typically follow supplier recommendations and verify performance through periodic analytical checks rather than assuming indefinite stability.
Preclinical reports have linked SR9009 to improved endurance and altered energy expenditure in rodents. Such findings have prompted interest in whether REV-ERB activation can influence skeletal muscle metabolism. However, the reported effects depend on dose, route, and experimental model, and replication across laboratories is limited. Human trials have not established comparable outcomes, so claims about exercise performance remain speculative. The absence of controlled human data is a central limitation in interpreting these observations.
The mechanism of action involves binding to REV-ERB receptors and recruiting corepressor complexes, which represses target gene transcription. This contrasts with many nuclear receptor agonists that activate transcription. Downstream effects may include changes in autophagy, mitochondrial biogenesis, and lipid handling, but the precise pathways remain an active area of study. Whether these molecular events translate into meaningful physiological effects in humans is unresolved. Most evidence comes from cultured cells and rodent models rather than human participants.
SR9009 is a synthetic small molecule developed as an agonist of the nuclear receptors REV-ERBα (NR1D1) and REV-ERBβ (NR1D2). These receptors help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, SR9009 alters transcription of genes involved in lipid metabolism, inflammation, and mitochondrial function. It is not an approved medicine, and its pharmacological profile in humans remains largely uncharacterized. The compound is frequently discussed in the context of circadian biology and metabolic research rather than clinical use.
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.
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.
== Side effects == Side effects of selenium disulfide shampoo for dandruff appear to be infrequent. A randomized controlled trial of 100 people who received selenium disulfide reported side effects of itching or burning sensation of the scalp (3 people), eruption near the hairline (1 person), psoriasis (1 person), lightening or bleaching of hair color (2 people), orange staining of the scalp (1 person), and a chemical taste while shampooing (1 person). Selenium disulfide can cause discoloration of nails and light hair and can alter the color of hair dyes. Several scattered case reports of orange to red–brown scalp discoloration with selenium sulfide shampoo exist. The discoloration resolved shortly following discontinuation of selenium disulfide shampoo and its removal could be facilitated by lightly swabbing with isopropyl alcohol. Selenium disulfide may also discolor metallic jewellery. Case reports of temporary diffuse hair loss with selenium disulfide shampoo exist as well. Excessive environmental or occupational exposure to selenium has also been associated with hair loss and other adverse effects. However, hair loss has not been reported with topical selenium disulfide in several large studies. Selenium disulfide should not be applied to damaged skin as there is a risk of systemic absorption and associated toxicity. Systemic symptoms may include tremors, weakness, lethargy, lower abdominal pain, and occasional vomiting. These symptoms usually resolve within 10 days following exposure.
=== JINR–LLNL collaboration === The now-confirmed discovery of element 114 was made in June 1999 when the JINR team repeated the first 244Pu + 48Ca reaction from 1998; following this, the JINR team used the same hot fusion technique to synthesize elements 116 and 118 in 2000 and 2002 respectively via the 248Cm + 48Ca and 249Cf + 48Ca reactions. They then turned their attention to the missing odd-numbered elements, as the odd protons and possibly neutrons would hinder decay by spontaneous fission and result in longer decay chains. The first report of element 113 was in August 2003, when it was identified as an alpha decay product of element 115. Element 115 had been produced by bombarding a target of americium-243 with calcium-48 projectiles. The JINR–LLNL collaboration published its results in February 2004:
== Clinical significance == Identification of the submucosa plays an important role in diagnostic and therapeutic endoscopy, where special fibre-optic cameras are used to perform procedures on the gastrointestinal tract. Abnormalities of the submucosa, such as gastrointestinal stromal tumors, usually show integrity of the mucosal surface. The submucosa is also identified in endoscopic ultrasound to identify the depth of tumours and to identify other abnormalities. An injection of dye, saline, or epinephrine into the submucosa is imperative in the safe removal of certain polyps. Endoscopic mucosal resection involves removal of the mucosal layer, and in order to be done safely, a submucosal injection of dye is performed to ensure integrity at the beginning of the procedure. Female uterine submucosal layers are liable to develop fibroids during pregnancy and are often excised upon discovery.
== External links == IamGSD — International Association for Muscle Glycogen Storage Disease Walking With McArdle's — IamGSD videos EUROMAC Introduction — Video about McArdle disease and the EUROMAC Registry of McArdle disease and other rare glycogenoses patients
The Parliament of South Africa consists of two houses: the National Assembly of South Africa (lower house) and the National Council of Provinces (upper house). Members of both houses are given the title Member of Parliament. The National Assembly is made up of 400 members, who are all elected by the public in general elections using a proportional representation system with closed lists. The National Council of Provinces is composed of 90 delegates with 10 delegates for each of the nine provinces regardless of the population of the province. A provincial delegation consists of six permanent delegates and four special delegates. NCOP delegates are elected by the nine provincial legislatures on the day when they reconvene, usually the same day as the National Assembly. The delegates are sworn in the next day.
Sources: en.wikipedia.org
Blepharoplasty, from Ancient Greek βλέφαρον (blépharon), meaning "eyelid", and πλαστός (plastós), meaning "molded", is the plastic surgery operation for correcting defects, deformities, and disfigurations of the eyelids; and for aesthetically modifying the eye region of the face. With the excision and the removal, or the repositioning (or both) of excess tissues, such as skin and adipocyte fat, and the reinforcement of the corresponding muscle and tendon tissues, the blepharoplasty procedure resolves functional and cosmetic problems of the periorbita, which is the area from the eyebrow to the upper portion of the cheek. The procedure is more common among women, who accounted for approximately 85% of blepharoplasty procedures in 2014 in the US and 88% of such procedures in the UK. The operative goals of a blepharoplastic procedure are the restoration of the correct functioning to the affected eyelid(s) and the restoration of the aesthetics of the eye-region of the face, which are achieved by eliminating excess skin from the eyelid(s), smoothing the underlying eye muscles, tightening the supporting structures, and resecting and re-draping the excess fat of the retroseptal area of the eye, in order to produce a smooth anatomic transition from the lower eyelid to the cheek.
Emotional dysregulation is a core feature of BPD and it is characterized by a difficulty in effectively managing emotional states. It may involve high sensitivity to emotional stimuli, heightened emotional intensity, large and rapid mood shifts, tendency for negative emotions, high affective empathy but low cognitive empathy, and a slow return to baseline after emotional arousal. Emotional dysregulation extends beyond emotions, affecting cognition, relationships, and behavior. Deficits in emotion regulation strategies are observed in BPD. These include resistance to accepting emotional responses, low flexibility to changing strategies, difficulty in identifying emotions, as well as a deficit in goal-directed behavior, and in using healthy coping strategies. Maladaptive strategies commonly used to regulate their emotions include self-harm, rumination, avoidance, and thought suppression. Emotional dysregulation is thought to be caused by an imbalance in the limbic system and the prefrontal cortex, particularly in the amygdala. Dialectical behavior therapy can be employed to help with emotional dysregulation.
=== Nutrition === Raw chanterelle mushrooms are 90% water, 7% carbohydrates, including 4% dietary fiber, 1.5% protein, and have negligible fat. A 100 gram reference amount of raw chanterelles supplies 38 kilocalories of food energy and the B vitamins, niacin and pantothenic acid, in rich content (20% or more of the Daily Value, DV), 27% DV of iron, with moderate contents (10-1 of riboflavin, manganese, and potassium (table). When exposed to sunlight, raw chanterelles produce a rich amount of vitamin D2 (35% DV) – also known as ergocalciferol.
Cardio-arrhythmia is a common side effect of diabetic patients and the anti-inflammatory effects of gingerol suppressed the risks by lowering blood glucose levels in-vivo. The anti-oxidant properties of [6]-gingerol has been considered as a defense against Alzheimer’s. A study observed the molecular mechanisms responsible for the protection against DNA fragmentation and mitochondrial membrane potential deterioration of cells which suggests a neuroprotective support of gingerol. This study indicates that ginger up-regulates glutathione production in cells, including nerve cells, through anti-oxidative properties which decreases the risk of Alzheimer's in human neuroblastoma cells and mouse hippocampal cells. While many studies suggest the low risk of using ginger phytochemicals to combat oxidation damage to cells, there are a few studies that suggest potential genotoxic effects. In one study too high of a dose to human hepatoma cells resulted in DNA fragmentation, chromosomal damage and organelle membrane instability which could result in apoptotic behavior. There are some pro-oxidant behaviors to gingerol compounds when the concentration reaches high levels although also considered, in normal conditions these phytochemicals observed have anti-inflammatory and anti-oxidant qualities. In another study [6]-Gingerol notably inhibited the metabolic rate of rats when given an intraperitoneal injection which induced a hypothermic reaction though, when consumed orally in excess there were no changes in body temperature.
Sources: en.wikipedia.org
Laboratories commonly use liquid chromatography coupled with mass spectrometry to detect SR9009. The method can identify the compound and estimate concentration in a sample. Detection limits depend on the matrix and instrument.
Research-grade purity indicates a supplier's measured percentage of the intended compound. It does not guarantee safety, sterility, or suitability for human consumption. Buyers should request a certificate of analysis with chromatograms and test methods.
Sports regulators prohibit SR9009 because it is a non-approved substance with potential performance-altering effects. Its presence can be detected in anti-doping testing. Athletes are responsible for substances found in their samples.
Legality depends on the country and the intended use. In many places it is sold as a research chemical, but sports and medicine regulations restrict it.