A practical reference on Stenabolic: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
Reviewed 2025-09-26. Anything still debated is marked as such rather than presented as settled.
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.
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.
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 |
|---|---|---|
| Regulatory status | Not approved for human use | Research-use-only status in many markets |
| WADA status | Prohibited in sport | Generally listed as a non-approved substance |
| Detection technique | LC-MS/MS | Common for urine and blood analysis |
| Common alias | Stenabolic | Informal market nickname, not a pharmacopoeial name |
| Purity check | HPLC or LC-UV | Independent certificate of analysis is typical |
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.
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.
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.
Popular party substances have been reported by users to consist of aphrodisiac properties because of their enhancing effects with sexual pleasure. Ecstasy users have reported an increase in sexual desire and sexual pleasure; however, there have been reports of delayed orgasm in both sexes and erectile difficulties in men. Poppers, containing drugs for inhalation, have been linked to increased sexual pleasure. Known adverse effects are headaches, nausea, and temporary erectile difficulties.
S-formylmycothiol + NADH + + The two substrates of this enzyme are S-(hydroxymethyl)mycothiol and oxidised nicotinamide adenine dinucleotide (NAD+). Its products are S-formylmycothiol, reduced NADH, and a proton. The enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is formaldehyde:NAD+ oxidoreductase (mycothiol-formylating). This enzyme is also called NAD/factor-dependent formaldehyde dehydrogenase or S-(hydroxymethyl)mycothiol dehydrogenase.
A thagomizer () is the distinctive arrangement of spike-shaped osteoderms on the tails of some stegosaurian dinosaurs. These spikes are believed to have been a defensive measure against predators. The arrangement of spikes originally had no distinct name. Cartoonist Gary Larson invented the name "thagomizer" in 1982 as a joke in his comic strip The Far Side, and it was gradually adopted as an informal term sometimes used within scientific circles, research, and education.
== Potential adverse effects == R. serpentina may cause adverse effects by interacting with various prescription drugs or via interference with mechanisms of mental depression or peptic ulcer. The reserpine in R. serpentina is associated with diverse adverse effects, including vomiting, diarrhea, dizziness, headache, anxiety, or hypersensitivity reactions.
Sources: en.wikipedia.org
=== Pharmacokinetics === Alexander Shulgin has noted that 6-HO-DET may have poor blood–brain barrier permeability due to its exposed hydroxyl group and consequent polarity analogously to bufotenin (5-HO-DMT).
Protein Structure drugdesign.org [1] Method_for_the_Characterization_of_the_Three-Dimensional_Structure_of_Proteins_Employing_Mass_Spectrometric_Analysis_and_Experimental-Computational_Feedback_Modeling [2] A_Method_for_the_Determination_of_the_Conformation_(Topology)_of_Proteins_Employing_Experimental-Computational_Feedback_Modeling
=== Gases === The solubility of gases in water is usually thought to decrease with temperature, but this only occurs to a certain temperature, before increasing again. For nitrogen, this minimum is 74 °C and for oxygen it is 94 °C Gases are soluble in superheated water at elevated pressures. Above the critical temperature, water is completely miscible with all gases. The increasing solubility of oxygen in particular allows superheated water to be used for wet oxidation processes.
Following the message of the Matazetas to eradicate the Knights Templar Cartel in the state of Michoacán, 21 bodies were found throughout several municipalities of the state as of 12 April 2012. At the location of the executions, authorities discovered cardboard signs written by CJNG.
C1: methane only C2: ethane only C3: propane only C4: 2 isomers: n-butane and isobutane (i-butane) C5: 3 isomers: n-pentane, isopentane, and neopentane C6: 5 isomers: n-hexane, 2-methylpentane (isohexane), 3-methylpentane, 2,2-dimethylbutane (neohexane), and 2,3-dimethylbutane C7: 9 isomers: n-heptane, 2-methylhexane (isoheptane), 3-methylhexane, 2,2-dimethylpentane (neoheptane), 2,3-dimethylpentane, 2,4-dimethylpentane, 3,3-dimethylpentane, 3-ethylpentane, 2,2,3-trimethylbutane C8: 18 isomers: octane, 2-methylheptane, 3-methylheptane, 4-methylheptane, 2,2-dimethylhexane, 2,3-dimethylhexane, 2,4-dimethylhexane, 2,5-dimethylhexane, 3,3-dimethylhexane, 3,4-dimethylhexane, 3-ethylhexane, 2,2,3-trimethylpentane, 2,2,4-trimethylpentane, 2,3,3-trimethylpentane, 2,3,4-trimethylpentane, 3-ethyl-2-methylpentane, 3-ethyl-3-methylpentane, 2,2,3,3-tetramethylbutane C9: 35 isomers of nonane C10: 75 isomers of decane C11: 159 isomers of undecane C12: 355 isomers of dodecane C20: 366,319 isomers of eicosane (icosane) C30: 4,111,846,763 isomers of triacontane C40: 62,481,801,147,341 isomers of tetracontane C50: 1,117,743,651,746,953,270 isomers of pentacontane C60: 22,158,734,535,770,411,074,184 isomers of hexacontane Branched alkanes can be chiral. For example, 3-methylhexane and its higher homologues are chiral due to their stereogenic center at carbon atom number 3. The above list only includes differences of connectivity, not stereochemistry. In addition to the alkane isomers, the chain of carbon atoms may form one or more rings.
Sources: en.wikipedia.org
There are two types of links alternating in the bush roller chain. The first type is inner links, having two inner plates held together by two sleeves or bushings upon which rotate two rollers. Inner links alternate with the second type, the outer links, consisting of two outer plates held together by pins passing through the bushings of the inner links. The "bushingless" roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing one step in assembly of the chain. The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings.
Logan Roy is a fictional character and one of the main characters of the American HBO satirical dark comedy-drama television series Succession. He is portrayed by Brian Cox and was created by showrunner Jesse Armstrong. Armstrong initially conceived the series as a feature film about the Murdoch family. He later decided to create a new script centered on original characters, with Logan being loosely based on Rupert Murdoch and Sumner Redstone. Logan Roy is the self-made billionaire founder of media and entertainment conglomerate Waystar RoyCo and the patriarch of the Roy family. He is a harsh leader who primarily focuses on his company rather than his four children Connor, Kendall, Roman and Siobhan. He is distrustful of his children and his subordinates, refusing to step down as CEO at the start of the series despite his advanced age as well as health. His conflicts with his family, his employees at Waystar, other businesses, and the United States Department of Justice form the central story-line of the series. The character and Brian Cox's performance has been critically acclaimed, and has been cited as one of the best villains and characters in television. For his performance, Cox won the Golden Globe Award for Best Actor in a Drama Series and was nominated for three Primetime Emmy Awards for Outstanding Lead Actor in a Drama Series.
Hepatocyte growth factor (HGF) or scatter factor (SF) is a paracrine cellular growth, motility and morphogenic factor. It is secreted by mesenchymal cells and targets and acts primarily upon epithelial cells and endothelial cells, but also acts on haemopoietic progenitor cells and T cells. It has been shown to have a major role in embryonic organ development, specifically in myogenesis, in adult organ regeneration, and in wound healing.
=== NAADP-selective physiology === Hardly surprisingly, the three major second messengers do not do the same thing and cannot always substitute for each other. The physiological consequences of Ca2+ release by each messenger may be different i.e. NAADP couples to downstream responses that cannot be mimicked by IP3 and cADPR. For example, NAADP selectively stimulates neuronal differentiation, or exocytosis in cytotoxic T-cells.
Strontium ranelate – may decrease degeneration in osteoarthritis and improve outcomes Gene therapy – Gene transfer strategies aim to target the disease process rather than the symptoms. Cell-mediated gene therapy is also being studied. One version was approved in South Korea for the treatment of moderate knee osteoarthritis; however, this was cancelled after it was discovered that the approval application and list of ingredients were misleading. The drug was administered intra-articularly. The anti-IL-1β monoclonal antibody canakinumab showed a reduced incidence of knee and hip replacements in those with osteoarthritis in a long term trial. IL-1β is a cytokine involved in joint destruction in osteoarthritis.
Sources: en.wikipedia.org
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.
Anti-doping laboratories typically use LC-MS/MS to detect SR9009 or its metabolites in urine or blood. The exact assay depends on the laboratory and the testing program. Detection can be challenging because the compound may be rapidly metabolized and present at low levels.
Stenabolic is an informal nickname used in online fitness and research-chemical markets, not an official drug name. It likely references reported effects on endurance in rodent studies. The nickname does not imply approval or proven human benefit.
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.