The short version of storage stability fits in a sentence. The long version — which is the one that helps — is below.
Reviewed 2026-02-22. Anything still debated is marked as such rather than presented as settled.
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.
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.
| 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 |
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.
REV-ERB proteins help regulate daily cycles in gene expression, including genes tied to lipid and glucose metabolism. SR9009 binds these receptors and alters their activity in cell and animal experiments. Consequences observed in rodents include changes in skeletal muscle oxidative capacity, blood lipid levels, and exercise performance. The precise chain from receptor occupancy to whole-body effects is still an active area of study. Human responses cannot be assumed from rodent data.
Most published work on SR9009 consists of preclinical studies. It is widely sold as a research chemical, a category that does not imply safety, efficacy, or pharmaceutical-grade quality. Sports anti-doping organizations have listed SR9009 as a prohibited substance, and its presence in an athlete sample can lead to sanctions. Legal status differs by country; in several jurisdictions it is not approved for human consumption and may be treated as an unapproved new drug.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not a steroid, peptide, or natural hormone. In scientific literature, it appears under the code SR9009 and in non-scientific contexts as Stenabolic. The compound was identified through chemical screening efforts aimed at targeting circadian clock components. Its status remains investigational, and no regulatory agency has approved it as a human medicine.
SR9009 is a synthetic small molecule studied as an agonist of the nuclear receptors REV-ERBα and REV-ERBβ. It is not an approved medicine and has no established human therapeutic use. The compound appears in scientific literature as a tool for probing circadian and metabolic regulation. Online sellers often label it as a research chemical, sometimes using the nickname Stenabolic. Its chemical identity is distinct from selective androgen receptor modulators, stimulants, and peroxisome proliferator-activated receptor delta agonists. Researchers use it mainly in cell and animal experiments.
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.
In September 1992, Austin formed a tag team known as the Hollywood Blonds with Brian Pillman, at the behest of lead booker Dusty Rhodes. Austin would later say that he was not excited about being placed into a tag team, as he was earmarked for a run with the WCW United States Heavyweight Championship with Harley Race as his manager. Initially billed under their individual personas, Pillman decided the pair needed their own finishing move, ring gear and team name, with traveling partner Scott Levy proposing the Hollywood Blonds, used in the 1970s by Buddy Roberts and Jerry Brown. At Halloween Havoc in October 1992, Austin (substituting for Terry Gordy) teamed with "Dr. Death" Steve Williams to wrestle Dustin Rhodes and Windham for the unified WCW and NWA World Tag Team Championship, wrestling to a 30-minute time limit draw. On March 27, 1993, the Hollywood Blonds won the unified NWA and WCW World Tag Team Championship by defeating Ricky Steamboat and Shane Douglas, and held the championship for five months. In the main event of Clash of the Champions XXIII in June 1993, the Blondes defended their championship against Ric Flair and Arn Anderson in a two-out-of-three-falls, where despite losing the first two falls, retained the championship as the second fall had been determined by a disqualification caused by Barry Windham. At Clash of the Champions XXIV In August 1993, Austin and Pillman were scheduled to defend their championship against Anderson and Paul Roma but a legitimately injured Pillman was replaced by Steven Regal, with whom Austin lost to Anderson and Roma.
=== Minor characters === Dimitri Chandler: Captain of the Goliath, Chandler mines the outer solar system for ice material which is slowly pushed towards the inner solar system, to make the inner planets habitable through long-term terraforming. Professor Anderson: a medical doctor, Anderson leads the medical team which revived Poole, and works with Indra Wallace both to aid Poole's convalescence, and also to manage his cultural shock at awakening into a strange future world. Dr. Stephen Del Marco: Alive at a future time (2513 AD) which is yet in the novel's distant past, Del Marco is the discoverer of TMA-0 in Africa: an earthbound monolith matching the lunar monolith which had been discovered hundreds of years earlier, in 2001. Dr. Theodore "Ted" Khan: A resident of Ganymede, Dr. Khan is contemptuous of religion, identifying it as a mental disorder.
A reduction of basal at night to prevent low blood sugar in infants and toddlers. An increase of basal at night to counteract high blood sugar levels due to growth hormone in teenagers. A pre-dawn increase to prevent high blood sugar due to the dawn effect in adults and teens. In a proactive plan before regularly scheduled exercise times such as morning gym for elementary school children or after-school basketball practice for high school children.
==== Females ==== Androgens may modulate the physiology of vaginal tissue and contribute to female genital sexual arousal. Women's level of testosterone is higher when measured pre-intercourse vs. pre-cuddling, as well as post-intercourse vs. post-cuddling. There is a time lag effect when testosterone is administered, on genital arousal in women. In addition, a continuous increase in vaginal sexual arousal may result in higher genital sensations and sexual appetitive behaviors. Testosterone may prove to be an effective treatment in female sexual arousal disorders, and is available as a dermal patch. There is no FDA-approved androgen preparation for the treatment of androgen insufficiency; however, it has been used as an off-label use to treat low libido and sexual dysfunction in older women. Testosterone may be a treatment for postmenopausal women as long as they are effectively estrogenized.
Multiple drugs from each category have been proven effective. Marketized drugs have encountered market demands, also boosted personalized medication developments aiming at a broader range of recipients. Still, disease establishment dilemmas and FDA drug approvals give rise to ethical concerns, posing obstacles in the field's development.
Sources: en.wikipedia.org
Cold seeps and hydrothermal vents of deep oceans are communities that do not rely on photosynthesis for food and energy production. These systems are largely driven by chemosynthetic derived energy. Both systems share common characteristics such as the presence of reduced chemical compounds (H2S and hydrocarbonates), local hypoxia or even anoxia, a high abundance and metabolic activity of bacterial populations, and the production of autochthonous, organic material by chemoautotrophic bacteria. Both hydrothermal vents and cold seeps show highly increased levels of metazoan biomass in association with a low local diversity. This is explained through the presence of dense aggregations of foundation species and epizoic animals living within these aggregations. Community-level comparisons reveal that vent, seep, and organic-fall macrofauna are very distinct in terms of composition at the family level, although they share many dominant taxa among highly sulphidic habitats. However, hydrothermal vents and cold seeps also differ in many ways. Compared to the more stable cold seeps, vents are characterized by locally-high temperatures, strongly fluctuating temperatures, pH, sulfide and oxygen concentrations, often the absence of sediments, a relatively young age, and often-unpredictable conditions, such as waxing and waning of vent fluids or volcanic eruptions. Unlike hydrothermal vents, which are volatile and ephemeral environments, cold seeps emit at a slow and dependable rate.
=== Space exploration === A direct search for life in Europa's ocean would today be prohibitively expensive. Impacts on Europa give us an easier way to look for evidence of life there. Every time a major impact occurs on Europa, a vast quantity of water is splashed from the ocean into the space around Jupiter. Some of the water evaporates, and some condenses into snow. Creatures living in the water far enough from the impact have a chance of being splashed intact into space and quickly freeze-dried. Therefore, an easy way to look for evidence of life in Europa's ocean is to look for freeze-dried fish in the ring of space debris orbiting Jupiter. Freeze-dried fish orbiting Jupiter is a fanciful notion, but nature in the biological realm has a tendency to be fanciful. Nature is usually more imaginative than we are. ...To have the best chance of success, we should keep our eyes open for all possibilities.
Likely factors in the development of cerebral edema are dehydration, acidosis and low carbon dioxide levels; in addition, the increased level of inflammation and coagulation may, together with these factors, lead to decreased blood flow to parts of the brain, which then swells up once fluid replacement has been commenced. The swelling of brain tissue leads to raised intracranial pressure ultimately leading to death.
== Development of penicillin derivatives == The narrow range of treatable diseases or "spectrum of activity" of the penicillins, along with the poor activity of the orally active penicillin V, led to the search for derivatives of penicillin that could treat a wider range of infections. The isolation of 6-APA, the nucleus of penicillin, allowed for the preparation of semisynthetic penicillins, with various improvements over benzylpenicillin. Ampicillin was developed by the Beecham Research Laboratories in London. When introduced to clinical use in 1961 it was the first semisynthetic penicillin that could be taken orally that was effective against both Gram-negative and Gram-positive bacteria, whereas the original was only effective against Gram-positive.
BrightStarSound.com Stanislav Petrov tribute website, multiple pages with photos and reprints of various articles about Petrov Nuclear War: Minuteman Article from Weekendavisen, 2 April 2004. The Nuclear War that Almost Happened in 1983 (posted September 5, 2003). History News Network, Originally in the Baltimore Sun of 31 August 2003 Armageddon Almost Not Averted "Sept. 26, 1983: The Man Who Saved the World by Doing ... Nothing". 30 years on: The day a computer glitch nearly caused World War III. The Register. 27 September 2013
Sources: en.wikipedia.org
This reabsorption occurs throughout the tubule (most, 60–70%, of it in the proximal tubule), except in the thin segment of the loop of Henle. Circulating parathyroid hormone only influences the reabsorption that occurs in the distal tubules and the renal collecting ducts (but see Footnote). A more important effect of PTH on the kidney is, however, its inhibition of the reabsorption of phosphate (HPO42−) from the tubular fluid, resulting in a decrease in the plasma phosphate concentration. Phosphate ions form water-insoluble salts with calcium. Thus, a decrease in the phosphate concentration of the blood plasma (for a given total calcium concentration) increases the amount of calcium that is ionized. A third important effect of PTH on the kidney is its stimulation of the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol), which is released into the circulation. This latter form of vitamin D is the active hormone which stimulates calcium uptake from the intestine. Via the kidney, PTH enhances the absorption of calcium in the intestine by increasing the production of activated vitamin D. Vitamin D activation occurs in the kidney. PTH up-regulates 25-hydroxyvitamin D3 1-alpha-hydroxylase, the enzyme responsible for 1-alpha hydroxylation of 25-hydroxy vitamin D, converting vitamin D to its active form (1,25-dihydroxy vitamin D). This activated form of vitamin D increases the absorption of calcium (as Ca2+ ions) by the intestine via calbindin. PTH was one of the first hormones to be shown to use the G-protein adenylyl cyclase second messenger system.
In November 2024, the US Food and Drug Administration approved PropofolVet Multidose, the first generic propofol injectable emulsion for dogs. PropofolVet Multidose is approved for use as an injectable anesthetic in dogs. PropofolVet Multidose contains the same active ingredient (propofol injectable emulsion) as the approved brand-name drug product, PropoFlo 28, which was first approved on 4 February 2011. In addition, the FDA determined that PropofolVet Multidose contains no inactive ingredients that may significantly affect the bioavailability of the active ingredient.
=== Tuition === Tuition for both fall and spring semesters at the University of Arizona is $12,700 for full-time undergraduate residents and $37,200 for non-residents. As in other states, the cost of tuition has been rising due to the reduction in government support and large increase in administrative staff over teaching staff. Undergraduate students who enrolled in the UA's optional tuition guarantee program in 2014 will remain at $11,591 for residents and $30,745 for non-residents through the 2018–19 academic year. Incoming students enrolled in a bachelor's degree program are automatically eligible for the Guaranteed Tuition Program and will not be subject to tuition increases for 8 continuous semesters (four years). The Guaranteed Tuition Program does not apply to rates for summer and winter sessions.
=== Pharmacodynamics === MMDA has been shown to act as a non-neurotoxic serotonin releasing agent, with no effects on release of dopamine or probably norepinephrine, and as a serotonin 5-HT2A receptor agonist. The latter property is thought to be responsible for its psychedelic effects, whereas the former action may be involved in its entactogenic effects.
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.
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.