Everything below concerns storage stability. We keep the language plain, cite what the science says, and separate well-supported claims from open questions.
Last reviewed on 2026-04-07. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
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.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. These receptors help regulate circadian rhythms and metabolic gene expression. In laboratory experiments, SR9009 binds these receptors and alters transcription of genes involved in lipid handling, glucose metabolism, and mitochondrial function. It is not a naturally occurring compound and has no approved therapeutic use. Research interest stems from its ability to modify energy metabolism in cells and animal models.
| 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. |
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.
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.
=== Synthesis === 3-CMC is commonly synthesized starting from 3-chloropropiophenone. 3-chloropropiophenone is subjected to alpha halogenation using bromine. Subsequently, methylamine acts as a nucleophile and displaces bromide in a nucleophilic substitution to form a racemic product. Cathinones are usually unstable as a freebase, so the product is often treated with HCl or HBr to form a hydrochloride or hydrobromide salt, respectively.
Redness and swelling Induration (hardening of the skin and soft tissue) Excessive pain Systemic symptoms, including high fever > 102 °F/39 °C, fatigue, muscle pains Large amounts of smelly pus and discharge, especially at a surgical site The initial skin changes are similar to cellulitis or abscess, so diagnosis in early stages may be difficult. The redness and swelling usually blend into the surrounding normal tissues. The overlying skin may appear shiny and tense as well. Later signs more suggestive of necrotizing changes (but only present in less than half of cases) are:
== Effects on nutrients == The process of flash freezing itself generally effectively retain the nutrient content of foodstuff with minor losses of vitamins, making them a cost-effective and nutritious substitute from fresh equivalents. However, pre-seasoned frozen food, such as packaged meals, may have a significant amounts of salt and fats added. It is therefore recommended to read the nutrition label and the ingredients list.
Early specimens represent birds that were pets or came from menageries. The oldest surviving bird specimens include an African grey parrot once owned by Frances Teresa Stuart (1647–1702) that was buried with its owner in London’s Westminster Abbey. Several mummified ibis and falcons have been recorded from Egyptian tombs dating from 600 to 300 BC. Bird specimens obtained from the 18th century for natural history collections were most often obtained using firearms. Shotguns with "dust" shot were preferred to reduce damage to the specimens. Today, specimens come from a variety of sources. Many (perhaps most) are salvaged from birds killed by window and communications tower strikes, domestic cats, by-catch from fisheries, die-offs from disease, vehicle strikes, and other accidental sources of mortality. However, the world's bird collections have been argued to be inadequate in documenting avian diversity, from taxonomic, geographic, and temporal perspectives, with some parts of tropical regions considered under-represented in particular museums. Underrepresented taxa continue to be actively collected by ornithologists, generally using either firearms or mist-nets. Permitting agencies oversee these activities in most countries.
Sources: en.wikipedia.org
A large number of illnesses and diseases are caused by mutations in alleles of the genes that regulate the production of actin or of its associated proteins. The production of actin is also key to the process of infection by some pathogenic microorganisms. Mutations in the different genes that regulate actin production in humans can cause muscular diseases, variations in the size and function of the heart, as well as deafness. The make-up of the cytoskeleton is also related to the pathogenicity of intracellular bacteria and viruses, particularly in the processes related to evading the actions of the immune system.
Hydrolysis of the alpha-linked peptide bond in the sequence Gly-Gly-!Ala-Thr-Tyr at the C-terminal end of the small ubiquitin-like modifier (SUMO) propeptide, Smt3 The enzyme from Saccharomyces cerevisiae can also recognize small ubiquitin-like modifier 1 (SUMO-1) from human.
Comparatively simple devices are often used to apply counterions of increasing gradient to a chromatography column. Counterions such as copper (II) are chosen most often for effectively separating peptides and amino acids through complex formation. A simple device can be used to create a salt gradient. Elution buffer is consistently being drawn from the chamber into the mixing chamber, thereby altering its buffer concentration. Generally, the buffer placed into the chamber is usually of high initial concentration, whereas the buffer placed into the stirred chamber is usually of low concentration. As the high concentration buffer from the left chamber is mixed and drawn into the column, the buffer concentration of the stirred column gradually increase. Altering the shapes of the stirred chamber, as well as of the limit buffer, allows for the production of concave, linear, or convex gradients of counterion. A multitude of different mediums are used for the stationary phase. Among the most common immobilized charged groups used are trimethylaminoethyl (TAM), triethylaminoethyl (TEAE), diethyl-2-hydroxypropylaminoethyl (QAE), aminoethyl (AE), diethylaminoethyl (DEAE), sulpho (S), sulphomethyl (SM), sulphopropyl (SP), carboxy (C), and carboxymethyl (CM). Successful packing of the column is an important aspect of ion chromatography. Stability and efficiency of a final column depends on packing methods, solvent used, and factors that affect mechanical properties of the column.
=== Acute treatment === Acute treatments are most effective when administered early in an attack. Initial recommended treatment for acute mild to moderate attacks is with over-the-counter (OTC) medications such as ibuprofen (Advil, Motrin) and paracetamol (acetaminophen, Tylenol) for pain. Triptans are recommended as a first-line therapy for moderate to severe attacks. The approval of CGRP inhibitors (gepants) is seen as a major advance in migraine treatment. Anti-nausea medications are used as a second-line treatment for migraine-related nausea. Ergotamines may be used by those experiencing headaches that do not respond to over-the-counter pain medications. Opioids should not be prescribed, as higher doses of opioids are linked to medication overuse headache (MOH) and increased risk of progression from episodic to chronic migraines. MOH can also be caused by frequent use of simple pain relievers such as paracetamol (more than 15 days a month), or by the use of triptans for more than 10 days a month. The UK National Institute for Care and Health Excellence recommends an abrupt pause of one month in the use of triptans and simple pain relievers in case of MOH; this may lead to a short-term increase in symptoms. Corticosteroids such as dexamethasone have been used to treat patients with an attack lasting more than three days, severe baseline disability, or refractory or recurrent headaches. Systematic review and network meta-analysis have been used to compare the effectiveness of medications for acute migraine attacks in adults.
The beta sheet (β-sheet, also β-pleated sheet) is a common motif of the regular protein secondary structure. Beta sheets consist of beta strands (β-strands) connected laterally by at least two or three backbone hydrogen bonds, forming a generally twisted, pleated sheet. A β-strand is a stretch of polypeptide chain typically 3 to 10 amino acids long with backbone in an extended conformation. The supramolecular association of β-sheets has been implicated in the formation of the fibrils and protein aggregates observed in amyloidosis, Alzheimer's disease and other proteinopathies.
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.
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.