LC-MS/MS is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Last reviewed on 2026-08-01. Where a claim depends on a specific study, the study is described rather than over-claimed.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Appearance | White to off-white powder | Common supplier description |
| Solubility | Soluble in DMSO and ethanol | Low solubility in water |
| Typical storage | −20 °C, desiccated, dark | For research samples |
| Analytical method | LC-MS/MS | Used for detection and quantification |
| Regulatory status | Prohibited in sport | WADA metabolic modulator class |
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.
Regulatory treatment of SR9009 reflects its investigational status. The compound has no approved human therapeutic indication, and sports authorities prohibit its use. It appears on anti-doping lists as a non-approved substance or metabolic modulator, depending on the list version. Products sold online as research chemicals are not quality-controlled medicines, so their identity and purity can differ from the label. Such products may also contain unlisted compounds, which complicates both testing and safety assessment.
Scientific discussion of SR9009 often separates animal evidence from human anecdote. Rodent studies provide controlled data on endurance, metabolism, and gene expression, but they use specific strains, doses, and treatment durations. Human reports are mostly uncontrolled and cannot establish cause and effect. Open questions include oral bioavailability, tissue distribution, metabolic stability, and long-term effects. Review articles generally call for more rigorous pharmacokinetic and safety research before any clinical use could be considered.
In laboratory settings, SR9009 is typically characterized by liquid chromatography–mass spectrometry (LC-MS) or high-performance liquid chromatography with ultraviolet detection (HPLC-UV). These methods can confirm identity and estimate purity, but they require reference standards for accurate quantification. Because SR9009 is not a licensed pharmaceutical, no harmonized pharmacopeial monograph exists. Laboratories often validate in-house methods for matrices such as plasma, urine, or cell culture media. Sample preparation may involve protein precipitation or liquid-liquid extraction before analysis.
Physicochemical behavior influences handling. SR9009 is described as a solid with limited aqueous solubility, so organic solvents such as dimethyl sulfoxide or ethanol are common in research stock solutions. Aqueous dilution can produce precipitates if the organic content is too low. Light, heat, and repeated freeze-thaw cycles may affect stability. Storage recommendations usually specify a desiccated freezer environment protected from light, but exact stability data depend on the formulation and matrix.
Detection in biological samples can be complicated by rapid metabolism and low circulating concentrations. Some studies report phase I and phase II metabolites, and analytical methods may need to target those species in addition to the parent compound. Immunoassays are not broadly available, so mass spectrometry remains the main confirmatory approach. For anti-doping testing, laboratories look for SR9009 and its metabolites using validated LC-MS methods. Open questions include how long metabolites remain detectable and how different routes of administration alter detection windows.
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.
=== Bulk measurement === Generally speaking bulk measurement instruments thermally vaporize the particles prior to ionization, and there are several different ways that the vaporization and ionization is performed. The main instrument that is used for bulk measurements is Aerodyne aerosol mass spectrometer (AMS).
== Safety == Preliminary studies seem to indicate that lithium orotate is safe if taken at lower dosages; a 6 month alcoholism cessation study led to only minor adverse effects in 8 out of 42 patients. However, the lack of safety studies and the over-the-counter drug status raises concerns. Attention to it was specially raised in medical literature after a case report of an 18 year old woman with mild, acute lithium toxicity after taking an overdose (2.16 grams) of a lithium orotate supplement. She was discharged after treatment. Lithium blood levels 90 minutes after ingestion reached 0.31 mEq/L, and an hour later after treatment, 0.40 mEq/L, levels below the serum toxicity level of 1.5 milliequivalents per liter (mEq/L).
=== December === December 1 – COVID-19 pandemic: In California, the first case of Omicron variant, a highly mutated variant of COVID-19, is reported by the CDC in a San Francisco resident, who had traveled to South Africa. December 2 Major League Baseball begins a lockout of its players. It is their first lockout since 1990. COVID-19 pandemic: Minnesota reports their first case of Omicron variant. Two Georgia election officials, Ruby Freeman and Wandrea' ArShaye Moss, file a defamation lawsuit against The Gateway Pundit. The lawsuit is the first to be filed by individual election workers who were targeted during the 2020 presidential election. December 4 – Chris Cuomo is fired by CNN for his violations of journalistic ethics by aiding his scandal-ridden brother. December 9 Workers at a Starbucks in Buffalo, New York vote 19–8 to unionize, becoming the first Starbucks in the country to do so. A virtual summit, Summit for Democracy, was hosted by the United States "to renew democracy at home and confront autocracies abroad". December 10 – A late season tornado outbreak occurs in the Southern and Midwestern United States, causing major damage and killing at least 94 people. December 11 COVID-19 pandemic: North Carolina reports its first case of the Omicron variant in a student at UNC Charlotte. The MLS Cup 2021 hosted in Portland, Oregon, New York City FC defeated Portland Timbers after won 4–2 on penalties (Both teams drew 1–1 in regulation and extra time).
Sources: en.wikipedia.org
== Career == Cooks became an assistant professor at Kansas State University from 1968 to 1971. In 1971, he took a position at Purdue University. He became a professor of chemistry in 1980 and was appointed the Henry Bohn Hass Distinguished Professor in 1990. Cooks was co-editor of the Annual Review of Analytical Chemistry from 2013 to 2017.
Alyssa Burrows said the band's distinctive sound "came from Staley's vocal style and his lyrics dealing with personal struggles and addiction." Staley's songs were often considered "dark", with themes such as drug abuse, depression, and suicide, while Cantrell's lyrics often dealt with personal relationships.
In early January 2011, the Colombian army said that FARC had some 18,000 members, with 9,000 of those forming part of the militias. The army claimed to have "identified" at least 1,400 such militia members in the FARC strongholds of Valle del Cauca and Cauca in 2011. In June 2011, Colombian chief of staff Edgar Cely claimed that FARC wanted to "urbanize their actions", which could partly explain the increased guerrilla activity in Medellín, and particularly Cali. Jeremy McDermott, co-director of InSight Crime, estimated in 2011 that FARC may have some 30,000 "part-time fighters", with supporters making up the rebel militia network instead of armed uniformed combatants. Also in 2011, the Colombian Congress issued a statement claiming that FARC had a "strong presence" in roughly one third of Colombia, while their attacks against security forces "continued to rise" throughout 2010 and 2011. In 2012, the Colombia Military launched the Espada de Honor War Plan, an aggressive counterinsurgency strategy aiming to dismantle FARC's structure, both militarily and financially. The plan targeted FARC leadership and focused on eliminating 15 of the most powerful economic and military fronts.
Sources: en.wikipedia.org
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.
Detection commonly uses liquid chromatography–tandem mass spectrometry. This method can identify the compound in urine or blood at low concentrations.
Typical guidance is −20 °C, dry, and protected from light. Solutions should be aliquoted and limited freeze–thaw cycles should be used.
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.