The short version of LC-MS fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-07-27 and is reviewed periodically as new material appears.
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.
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.
| Property | Value | Notes |
|---|---|---|
| Chemical class | Synthetic small-molecule REV-ERB agonist | Not a hormone or natural product |
| Primary targets | REV-ERBα and REV-ERBβ | Nuclear receptors involved in circadian and metabolic regulation |
| Appearance | White to off-white solid | Typical for purified research samples |
| Solubility | Soluble in DMSO and ethanol; low water solubility | Laboratory solubility depends on solvent and purity |
| Common synonyms | SR9009; Stenabolic | Stenabolic is a colloquial name, not a formal chemical name |
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 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.
=== Chemotherapy-induced neutropenia === Chemotherapy can cause myelosuppression and unacceptably low levels of white blood cells (leukopenia), making patients susceptible to infections and sepsis. G-CSF stimulates the production of granulocytes, a type of white blood cell. In oncology and hematology, a recombinant form of G-CSF is used with certain cancer patients to accelerate recovery and reduce mortality from neutropenia after chemotherapy, allowing higher-intensity treatment regimens. It is administered to oncology patients via subcutaneous or intravenous routes. A QSP model of neutrophil production and a PK/PD model of a cytotoxic chemotherapeutic drug (Zalypsis) have been developed to optimize the use of G-CSF in chemotherapy regimens with the aim to prevent mild-neutropenia. G-CSF was first trialled as a therapy for neutropenia induced by chemotherapy in 1988. The treatment was well tolerated and a dose-dependent rise in circulating neutrophils was noted. A study in mice has shown that G-CSF may decrease bone mineral density. G-CSF administration has been shown to attenuate the telomere loss associated with chemotherapy.
Most of Poland that was partitioned and annexed to Prussia in the late 18th-century was still part of Greater Germany at the close of World War I, the rest of the Kingdom of Poland being in Austria-Hungary. The portion in Germany included the region of Greater Poland, of which Poznań (Posen) was a major industrial city and its capital. The majority of the population was Polish (more than 60%) and hoped to be within the borders of the new Polish state.
Examples include alpha-Amanitin containing mushrooms, kava, and aflatoxin producing molds. Pyrrolizidine alkaloids, which occur in some plants, can be toxic. Green tea extract is a growing cause of liver failure due to its inclusion in more products.
== Properties == Above their melting temperatures, Tm, thermoplastics like nylon are amorphous solids or viscous fluids in which the chains approximate random coils. Below Tm, amorphous regions alternate with regions which are lamellar crystals. The amorphous regions contribute elasticity, and the crystalline regions contribute strength and rigidity. The planar amide (-CO-NH-) groups are very polar, so nylon forms multiple hydrogen bonds among adjacent strands. Because the nylon backbone is so regular and symmetrical, especially if all the amide bonds are in the trans configuration, nylons often have high crystallinity and make excellent fibers. The amount of crystallinity depends on the details of formation, as well as on the kind of nylon.
MSP using qPCR can also be performed to obtain quantitative rather than qualitative information about methylation. Miniprimer PCR: uses a thermostable polymerase (S-Tbr) that can extend from short primers ("smalligos") as short as 9 or 10 nucleotides. This method permits PCR targeting to smaller primer binding regions, and is used to amplify conserved DNA sequences, such as the 16S (or eukaryotic 18S) rRNA gene. Multiplex ligation-dependent probe amplification (MLPA): permits amplifying multiple targets with a single primer pair, thus avoiding the resolution limitations of multiplex PCR (see below). Multiplex-PCR: consists of multiple primer sets within a single PCR mixture to produce amplicons of varying sizes that are specific to different DNA sequences. By targeting multiple genes at once, additional information may be gained from a single test-run that otherwise would require several times the reagents and more time to perform. Annealing temperatures for each of the primer sets must be optimized to work correctly within a single reaction, and amplicon sizes. That is, their base pair length should be different enough to form distinct bands when visualized by gel electrophoresis. Nanoparticle-assisted PCR (nanoPCR): some nanoparticles (NPs) can enhance the efficiency of PCR (thus being called nanoPCR), and some can even outperform the original PCR enhancers. It was reported that quantum dots (QDs) can improve PCR specificity and efficiency.
Sources: en.wikipedia.org
== External links == 1P-LSD - Isomer Design 1P-LSD - PsychonautWiki 1P-LSD: Is “Legal Acid” Legit? Is it Safe? - Tripsitter 1P-LSD - Lysergamide Psychedelics - TripSitter 1P-LSD - Psychedelic Science Review
In maggot debridement therapy, sterile, medical-grade larvae of the necrophagous fly Lucilia sericata are used to eliminate necrotic (dead) tissue from non-healing skin and soft-tissue wounds. This is important as dead tissue can facilitate bacterial growth, impede wound healing, and reduce the effectiveness of topical medications. Physicians may administer the fly larvae directly to skin and soft tissue wounds or indirectly within a sealed mesh bag. Larvae then debride the wound by digesting, liquefying and consuming the dead tissue. The US Food and Drug Administration (FDA) have cleared Lucilia sericata larvae for use as a "medical device" in the US to debride several types of wound including pressure ulcers, neuropathic foot ulcers, and nonhealing surgical wounds.
The foursubstrates of this enzyme are 3-hydroxybenzoic acid, reduced nicotinamide adenine dinucleotide phosphate (NADPH), oxygen, and a proton. Its products are protocatechuic acid, oxidised NADP+, and water. The enzyme is a flavin-containing monooxygenase that uses molecular oxygen as oxidant and incorporates one of its atoms into the starting material. The systematic name of this enzyme class is 3-hydroxybenzoate,NADPH:oxygen oxidoreductase (4-hydroxylating). It is also called 3-hydroxybenzoate 4-hydroxylase. It participates in benzoate degradation via hydroxylation and uses flavin adenine dinucleotide as a cofactor.
At the end of the electrophoretic separation, all proteins are sorted by size and can then be analyzed by other methods, e. g. protein staining such as Coomassie staining (most common and easy to use), silver staining (highest sensitivity), stains all staining, Amido black 10B staining, Fast green FCF staining, fluorescent stains such as epicocconone stain and SYPRO orange stain, and immunological detection such as the Western Blot. The fluorescent dyes have a comparatively higher linearity between protein quantity and color intensity of about three orders of magnitude above the detection limit (the quantity of protein that can be estimated by color intensity). When using the fluorescent protein dye trichloroethanol, a subsequent protein staining is omitted if it was added to the gel solution and the gel was irradiated with UV light after electrophoresis. In Coomassie staining, gel is fixed in a 50% ethanol 10% glacial acetic acid solution for 1 hr. Then the solution is changed for fresh one and after 1 to 12 hrs gel is changed to a staining solution (50% methanol, 10% glacial acetic acid, 0.1% coomassie brilliant blue) followed by destaining changing several times a destaining solution of 40% methanol, 10% glacial acetic acid.
== History == The origins of atmospheric pressure chemical ionization sources combined with mass spectrometry can be found in the 1960s in studies of ions in flames and of ion chemistry in corona discharges up to atmospheric pressure. The first application of APCI combined with mass spectrometry for trace chemical analysis was by the Franklin GNO Corporation who in 1971 developed an instrument combining APCI with ion mobility and mass spectrometry. Horning, Carroll and their co-workers in the 1970s at the Baylor College of Medicine (Houston, TX) demonstrated the advantages of APCI for coupling gas chromatography (GC) and liquid chromatography (LC) to a mass spectrometer. High sensitivity and simple mass spectra were shown in these studies. For LC-MS, the LC eluate was vaporized and ionized in a heated metal block. Initially, a 63Ni foil was used as a source of electrons to perform ionization. In 1975, a corona discharge electrode was developed, providing a larger dynamic response range. APCI with the corona discharge electrode became the model for modern commercially available APCI interfaces. In the late 1970s an APCI mass spectrometer system (the TAGA, for Trace Atmospheric Gas Analyzer), mounted in a van for mobile operation, was introduced by SCIEX, providing high sensitivity for monitoring polar organics in ambient air in real time. In 1981 a triple quadrupole mass spectrometer version was produced, allowing real-time direct air monitoring by APCI-MS/MS.
Sources: en.wikipedia.org
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.
It binds REV-ERBα and REV-ERBβ and changes transcription of metabolic genes. This can affect circadian rhythm, lipid use, and mitochondrial function. The full downstream effects are still under study.
No. Some rodent studies show increased endurance, but controlled human trials are lacking. Claims about human performance are not established by published evidence.
Liquid chromatography with mass spectrometry is a common approach. Ultraviolet detection and nuclear magnetic resonance can support identification when suitable standards are available.