storage stability 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.
Updated 2026-07-28. Numbers and descriptions here follow the published literature rather than marketing material.
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.
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.
Because REV-ERB receptors are core clock components, SR9009 has been examined for effects on daily rhythms as well as metabolism. Research has explored whether the compound can shift or reinforce circadian gene expression in tissues such as liver and muscle. Some studies report improved metabolic markers in obese or diabetic mice, while others show context-dependent responses. Questions remain about which effects are direct, which are secondary to timing, and how they might differ across species.
SR9009 is a synthetic small molecule studied as an agonist of REV-ERB nuclear receptors. REV-ERB alpha and REV-ERB beta help regulate circadian rhythms and metabolic gene expression. In laboratory research, SR9009 has been used to probe how these receptors affect skeletal muscle, liver, and adipose tissue. The compound was identified in academic drug-discovery work and is often described in scientific literature by its chemical name and research code. It is not an approved medicine, and human clinical data remain limited or absent.
SR9009 binds REV-ERB receptors and alters their repressive activity on target genes. This action can change transcription of genes involved in lipid handling, glucose metabolism, and mitochondrial function. In rodent studies, treated animals have shown changes in muscle oxidative capacity and exercise performance, though effects vary by dose, duration, and model. The precise molecular steps connecting receptor binding to whole-body outcomes are still an active area of investigation. Findings in animals do not automatically translate to humans.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white powder | Typical for research-grade material |
| Solubility | Soluble in DMSO and ethanol; low aqueous solubility | Organic stock solutions are common |
| Typical storage temperature | -20 °C or lower | Protect from light and moisture |
| Common analytical method | LC-MS/MS | Used for detection and confirmation |
| Common synonyms | SR9009; Stenabolic | Stenabolic is an informal name |
At the molecular level, SR9009 binds REV-ERBα and REV-ERBβ and alters their repressive activity on target genes. These nuclear receptors help regulate the circadian clock, lipid synthesis, glucose metabolism, and inflammatory pathways. By changing transcription, the compound can shift the timing or magnitude of downstream metabolic processes in model systems. It does not act through androgen receptors or adenosine receptors, which distinguishes it from several substances sold for athletic performance. Whether the same transcriptional changes occur in humans at tolerable exposures remains an open question because controlled human studies are lacking.
Preclinical reports describe effects on exercise endurance, mitochondrial content, and lipid profiles in rodents, but these findings come from specific experimental conditions. Many studies use high doses or delivery methods that may not translate directly to human use. SR9009 has been reported to have low oral bioavailability and a short half-life, which complicates interpretation of oral dosing studies. It is not established as safe or effective for any indication. Literature discussions often separate its pharmacological mechanism from unverified claims made in fitness and supplement markets.
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.
SR9009 is frequently discussed in fitness and research-chemical contexts, yet it has no approved medical indication. Regulatory agencies have not authorized it for human use, and it is not a standard prescription drug. Some sports organizations list it as a prohibited substance because of its potential performance-enhancing properties. Published human data are sparse, so claims about its effects in people often rely on animal models or anecdotal reports. Quality and identity of online materials can vary widely.
SR9009 is a synthetic small molecule studied as a REV-ERB agonist. REV-ERBα and REV-ERBβ are nuclear receptors that help regulate circadian rhythms and metabolic gene expression. The compound was identified in academic screening efforts to find synthetic ligands for these receptors. In cell and animal studies, SR9009 alters transcription of genes involved in lipid and glucose metabolism, and it can shift circadian behavior. It is not an approved therapeutic agent.
==== Predictive Low Glucose Suspend (PLGS) ==== A step forward from threshold suspend systems, predictive low glucose suspend (PLGS) systems use a mathematical model to extrapolate predicted future blood sugar levels based on recent past readings from a CGM. This allows the system to reduce or halt insulin delivery prior to a predicted hypoglycemic event.
=== Enzyme kinetics === Using the thermodynamic data from ITC, it is possible to deduce enzyme kinetics including proton or electron transfer, allostery and cooperativity, and enzyme inhibition. Modern ITC instruments can measure heat rates as small as 0.1 μcal/sec, allowing for the precise determination of reaction rates in the range of 10−12 mol/sec and ITC can determine values for Km and kcat, in the ranges of 10−2–103 μM and 0.05–500 sec−1, respectively. ITC collects data over time that is useful for any kinetic experiments, but especially with the proteins due to constant aliquots of injections. In terms of calculation, equilibrium constant and the slopes of binding can be directly utilized to determine the allostery and charge transfer, by comparing experimental data of different conditions (pH, use of mutated peptide chain and binding sites, etc.). Kinetic data obtained from ITC have been found to closely align with results from other purely kinetic methods, such as surface plasmon resonance.
Rachel Jane Nickell (23 November 1968 – 15 July 1992) was a British woman who was stabbed to death on Wimbledon Common in southwest London on 15 July 1992. The initial police investigation of the crime resulted in the arrest in controversial circumstances of an innocent man, who was acquitted. Nickell was walking with her two-year-old son on Wimbledon Common when she was stabbed 49 times in the neck and torso and died at the scene. A lengthy police investigation to find the perpetrator followed, during which a suspect was wrongfully charged and later acquitted—before the case went cold. The detectives involved in arresting the innocent man had rejected, with "hostility", a suggestion from detectives investigating the November 1993 murders of single mother Samantha Bisset and her four-year-old daughter, Jazmine, as having been perpetrated by the same suspect due to a preponderance of similarities in the crimes. In 2006, a cold case investigation did identify Robert Napper – the man caught and convicted in 1995 for the Bisset murders – as Nickell's murderer. In 2008, Napper pleaded guilty to Nickell's manslaughter on the grounds of diminished responsibility. Napper, who was already detained at high-security Broadmoor Hospital in Berkshire for the Bisset murders, was ordered to be detained there indefinitely.
=== Neutering status in animals === In veterinary medicine, AMH measurements are used to determine neutering status in male and female dogs and cats. AMH levels can also be used to diagnose cases of ovarian remnant syndrome.
Antibody - targets the cancer cell surface and may also elicit a therapeutic response. Payload - elicits the desired therapeutic response. Linker - attaches the payload to the antibody and should be stable in circulation only releasing the payload at the desired target. Multiple approaches to conjugation have been developed for attachment to the antibody and reviewed. DAR is the drug to antibody ratio and indicates the level of loading of the payload on the ADC.
Sources: en.wikipedia.org
=== Amino acid substitution === Incorporating amino acids that deviate from the genetic code predictions is usually detected as amino acid substitutions in proteins and peptides. Such alternate RNA decoding results in stable and abundant proteins in both mouse and human tissues. The abundance of such substitutions is determined by multiple mechanisms, including codon frequency, codon–anticodon mismatches, RNA modifications, and protein stability. In some cells certain amino acids can be depleted and thus affect translation efficiency. For instance, activated T cells secrete interferon-γ which triggers intracellular tryptophan shortage by upregulating the indoleamine 2,3-dioxygenase 1 (IDO1) enzyme. Despite tryptophan depletion, in-frame protein synthesis continues across tryptophan codons. This is achieved by incorporation of phenylalanine instead of tryptophan. The resulting peptides are called W>F "substitutiant". Such W>F substitutiant are abundant in certain cancer types and have been associated with increased IDO1 expression. Functionally, W>F substitutiants can impair protein activity.
=== Chemical synthesis === The chemical synthesis of salvinorin A has been described. A total asymmetric synthesis of salvinorin A, which relies on a transannular Michael reaction cascade to construct the ring system, was achieved as a 4.5% overall yield over 30 steps, then revised using 24 steps to yield salvinorin A in 0.15% yield. An approach to the trans-decalin ring system of salvinorin A used an intramolecular Diels-Alder reaction/Tsuji allylation strategy, and a total synthesis of salvinorin A was achieved using the intramolecular Diels-Alder / Tsuji allylation approach, combined with an asymmetric late-stage addition of the furan moiety.
=== Small-cell lung cancer === Around 15% of all lung cancers (also called carcinomas) are small-cell lung cancers, and around 85% are non-small-cell lung cancers. Small-cell lung carcinoma (SCLC) has long been divided into two clinicopathological stages, termed limited stage (LS) and extensive stage (ES). The stage is generally determined by the presence or absence of metastases, whether or not the tumor appears limited to the thorax, and whether or not the entire tumor burden within the chest can feasibly be encompassed within a single radiotherapy portal. In general, if the tumor is confined to one lung and the lymph nodes close to that lung, the cancer is said to be LS. If cancer has spread beyond that, it is said to be ES. Lung cancer is the leading cause of cancer-related deaths worldwide, accounting for the highest mortality rates among both men and women. When associated with the lung, SCLC is sometimes called "oat cell carcinoma" due to the flat cell shape and scanty cytoplasm. Small cell mesothelioma – an extremely rare subtype of lung cancer – can be mistaken for small cell lung cancer. Small-cell carcinoma is most often more rapidly and widely metastatic than non-small-cell lung carcinoma (and hence staged differently). There is usually early involvement of the hilar and mediastinal lymph nodes. The mechanisms of its metastatic progression are not well understood.
CSL Limited is an Australian multinational specialty biotechnology company that researches, develops, manufactures, and markets products to treat and prevent serious human medical conditions. CSL's product areas include blood plasma derivatives, vaccines, antivenom, and cell culture reagents used in various medical and genetic research and manufacturing applications. The company was established in 1916 as Commonwealth Serum Laboratories and was wholly owned by the Australian federal government until its privatisation in 1994.
Sources: en.wikipedia.org
Pasqualini syndrome Kallmann syndrome Hypothalamic suppression Hypopituitarism Eating disorder Female athlete triad Hyperprolactinemia Hypogonadism Gonadal suppression therapy GnRH antagonist GnRH agonist (inducing an initial stimulation (flare up) followed by permanent blockage of the GnRH pituitary receptor)
Repeated heroin use changes the physical structure and physiology of the brain, creating long-term imbalances in neuronal and hormonal systems that are not easily reversed. Studies have shown some deterioration of the brain's white matter due to heroin use, which may affect decision-making abilities, the ability to regulate behavior, and responses to stressful situations. Heroin also produces profound degrees of tolerance and physical dependence. Tolerance occurs when more and more of the drug is required to achieve the same effects. With physical dependence, the body adapts to the presence of the drug, and withdrawal symptoms occur if use is reduced abruptly.
== Early life and education == Tanner was born and raised in St. Catharines, Ontario Canada. He bought his first chemistry set, from his brother, at age 6. Through his early teenage years, he was provided with laboratory space at Brock University, under the guidance of Dr. E.A. Cherniak and Dr. F.P. Koffyberg, where he attempted to replicate Geiger–Marsden experiments also known as Rutherford's experiment (scattering of alpha particles by gold foil) using various home-built instruments, including cloud chambers. Tanner graduated with a BSc in chemistry from York University in 1976. During his undergraduate years, he became a nationally ranked gymnast. An injury at the Olympic trials ended his competitive gymnastics career, and he took up marathon running during graduate school (best time 2:47:13). He received a Doctor of Philosophy (Chemistry) from York University in 1980, having studied ion-molecule reaction kinetics and flame ion chemistry with Drs. D.K Bohme and J.M. Goodings.
== Contraindications == Circulatory collapse, depressed level of consciousness due to any cause, Coma. Severe depression requiring hospitalization or electroconvulsive therapy. Not recommended for use in states of excitement or overactivity.
Clopidogrel and aspirin versus aspirin alone for the prevention of atherothrombotic events. N Engl J Med. 2006;354(16):1706-1717. PMID 16531616. Citations: 3,953. Bhatt DL, Steg PG, Miller M, Brinton EA, Jacobson TA, Ketchum SB, et al. Cardiovascular risk reduction with icosapent ethyl for hypertriglyceridemia. N Engl J Med. 2019;380(1):11-22. PMID 30415628. Citations: 3,275. Schwartz GG, Steg PG, Szarek M, Bhatt DL, Bittner VA, Diaz R, et al. Alirocumab and cardiovascular outcomes after acute coronary syndrome. N Engl J Med. 2018;379(22):2097-2107. PMID 30380328. Citations: 3,076. Schauer PR, Kashyap SR, Wolski K, Brethauer SA, Kirwan JP, Pothier CE, et al. Bariatric surgery versus intensive medical therapy in obese patients with diabetes. N Engl J Med. 2012;366(17):1567-1576. PMID 22455443. Citations: 2,979.
Sources: en.wikipedia.org
Research-grade SR9009 is typically stored frozen at about minus twenty degrees Celsius, protected from light and moisture. Stock solutions are often kept in aliquots to avoid repeated freeze-thaw cycles. Specific storage conditions should follow the supplier's documentation.
Liquid chromatography with tandem mass spectrometry is widely used to detect and confirm SR9009 in laboratory samples. The technique offers high sensitivity and can distinguish the target compound from related substances. Nuclear magnetic resonance and ultraviolet detection may support identity and purity checks.
Online products labeled as SR9009 may vary in identity, purity, and actual content. Independent testing helps confirm that a sample matches its label and does not contain unexpected contaminants. This is important for reproducible research and for interpreting experimental results.
SR9009 is a synthetic research compound that acts on REV-ERB nuclear receptors. It is not approved for human use and is sold only as a research chemical. Its effects have been studied mainly in cells and rodents.