SR9009 raises a handful of sensible questions. This page answers them in order, starting with the fundamentals and moving to applications.
Reviewed 2025-08-31. Anything still debated is marked as such rather than presented as settled.
SR9009 is a synthetic small molecule developed as an agonist of the nuclear receptors REV-ERBα (NR1D1) and REV-ERBβ (NR1D2). These receptors help regulate circadian rhythms and metabolic gene expression. In cell and animal studies, SR9009 alters transcription of genes involved in lipid metabolism, inflammation, and mitochondrial function. It is not an approved medicine, and its pharmacological profile in humans remains largely uncharacterized. The compound is frequently discussed in the context of circadian biology and metabolic research rather than clinical use.
Preclinical reports have linked SR9009 to improved endurance and altered energy expenditure in rodents. Such findings have prompted interest in whether REV-ERB activation can influence skeletal muscle metabolism. However, the reported effects depend on dose, route, and experimental model, and replication across laboratories is limited. Human trials have not established comparable outcomes, so claims about exercise performance remain speculative. The absence of controlled human data is a central limitation in interpreting these observations.
SR9009 is supplied as a solid research chemical, often in milligram quantities. Laboratories typically weigh it in a controlled environment because fine powders can disperse. Stock solutions are commonly prepared in dimethyl sulfoxide and stored in small aliquots to reduce freeze-thaw cycles. Personal protective equipment and chemical fume hoods are standard when handling unknown or potent compounds. These practices address laboratory safety rather than human use.
Identity and purity of SR9009 samples are usually checked with chromatographic and spectrometric methods. High-performance liquid chromatography can separate the compound from related impurities, while mass spectrometry provides molecular mass confirmation. Nuclear magnetic resonance spectroscopy may be used for structural verification in research settings. No single method proves biological activity, and certificates of analysis should be reviewed alongside raw data. Independent testing is often needed because online products vary widely.
| Property | Value | Notes |
|---|---|---|
| Chemical class | Synthetic REV-ERB agonist | Small molecule; not a steroid or peptide. |
| Primary targets | NR1D1 and NR1D2 | Also known as REV-ERBα and REV-ERBβ. |
| Studied routes | Intraperitoneal in rodents | Oral bioavailability in humans is not established. |
| Human approval | No approved therapeutic indication | No recognized clinical use. |
| Key uncertainty | Human physiological effects | Preclinical findings may not translate. |
Stability depends on physical form, temperature, light exposure, and solvent. Solid SR9009 is generally stored cold and dry, with protection from light to limit degradation. Dimethyl sulfoxide stocks are common for laboratory work, but repeated freeze-thaw cycles can reduce compound integrity. Aqueous solutions may be less stable than organic stocks, and the ethyl ester in the structure can be susceptible to hydrolysis under certain conditions. Researchers typically validate storage conditions and recheck purity before quantitative experiments, especially when using archived material.
Regulatory treatment of SR9009 varies by country and region. It is not approved as a pharmaceutical, and several jurisdictions restrict its sale for human consumption. Some authorities classify it as a research chemical, a prescription-only substance, or a prohibited performance-enhancing agent in sport. Purchasers may encounter certificates of analysis, but these documents do not guarantee identity, purity, or legality. In research settings, institutional safety reviews and controlled procurement help ensure that materials are handled under appropriate oversight. The absence of harmonized rules means that legal status can change and requires verification.
SR9009 is not approved as a medicine by major regulatory agencies. It is commonly sold as a research chemical, a category that may fall outside customary drug approval and quality rules. In sports, the World Anti-Doping Agency lists SR9009 as a prohibited substance. Athletes who use it can face sanctions if it is detected in a sample. Legal status varies by country, and importation may be restricted. Enforcement practices differ across borders.
Detection of SR9009 in biological samples usually employs liquid chromatography coupled with tandem mass spectrometry. This method can identify the parent compound and sometimes metabolites in urine or blood. Because exposure can be low and clearance may be rapid, sample timing and limits of detection matter. Laboratories validate assays for sensitivity and specificity. Results are interpreted alongside chain-of-custody and quality-control records. Urine is the common matrix for anti-doping analysis, while blood may be used in research settings.
Handling recommendations for SR9009 in a laboratory setting include storing the solid at low temperature, protected from light and moisture. The compound is often dissolved in dimethyl sulfoxide or ethanol for experiments. Solutions should be prepared with appropriate personal protective equipment and disposed of according to local rules. Stability data for long-term storage are limited, so stock solutions are typically kept cold and used within defined periods. Records of preparation date and concentration support reproducibility.
== Affiliated hospitals == Rajindra Hospital, Patiala with 1009 beds was attached to the college in early 1951. The hospital was equipped with all the latest apparatus and instruments to make it fit for imparting clinical teaching to the students. Two well designed, spacious and well lighted lecture theatres equipped with arrangements for epidiascopes projections and audio visual aids were provided on the hospital side in addition to four lecture theatres of similar design on college side for basic departments. The department of Tuberculosis and Respiratory Medicine/Pulmonary Medicine is located in a separate campus, known as the Tuberculosis Centre, Patiala which started functioning on 25 July 1953 with 22 observation beds, 11 for male and 11 for female patients with Tuberculosis. It is popularly known as TB Hospital or Padma Shri Dr. Khushdeva Singh Chest Diseases Hospital, and currently has a capacity of 121 beds. Primary health centres at Bhadson, Kauli and Tripuri are attached with this college for teaching purposes. There are three hostels, two for girls and one for boys. In addition to this there is one hostel in the Rajindra Hospital also for Doctors/Interns/House surgeons. The college has a very spacious auditorium, big play ground and an open-air theatre. The college is governed by Director Research and Medical Education, Punjab and is affiliated to Baba Farid University of Health Sciences, Faridkot.
However the stepwise addition of at least three independent sets of chemical moieties to a tri-functional core building block for the construction and encoding of a very large DNA-encoded library (comprising up to 106 compounds) can also be envisaged.(Fig.2)
Other culinary gelling agents can be used instead of animal-derived gelatine. These plant-derived substances are more similar to pectin and other gelling plant carbohydrates than to gelatine proteins; their physical properties are slightly different, creating different constraints for the preparation and storage conditions. These other gelling agents may also be preferred for certain traditional cuisines or dietary restrictions. Agar, a product made from red algae, is the traditional gelling agent in many Asian desserts. Agar is a popular gelatine substitute in quick jelly powder mix and prepared dessert gels that can be stored at room temperature. Compared to gelatine, agar preparations require a higher dissolving temperature, but the resulting gels congeal more quickly and remain solid at higher temperatures, 40 °C (104 °F), as opposed to 15 °C (59 °F) for gelatine. Vegans and vegetarians can use agar to replace animal-derived gelatine. Another common seaweed-based gelatine substitute is carrageenan, which has been used as a food additive since ancient times. It was first industrially-produced in the Philippines, which pioneered the cultivation of tropical red seaweed species (primarily Eucheuma and Kappaphycus spp.) from where carrageenan is extracted. The Philippines produces 80% of the world's carrageenan supply. Carrageenan gelatine substitute are traditionally known as gulaman in the Philippines. It is widely used in various traditional desserts and are sold as dried bars or in powder form.
Sources: en.wikipedia.org
=== Differences from deepfakes === Although AI-generated pornography and deepfake pornography rely on similar generative AI technologies, deepfakes involve altering existing content, usually photographs of unconsenting individuals, while AI-generated pornography usually synthesizes explicit content from scratch without using people's likenesses directly. Digital image analysis expert Hany Farid opined that, while deepfake pornography of unconsenting individuals should be illegal, the legal status of AI-generated pornography created from scratch is "more complex".
(2026) determine the age of the carbon black-based figures in the rock art from the Font-de-Gaume cave (France) on the basis of chemical imaging and radiocarbon dating. Parfitt et al. (2026) identify an Upper Paleolithic pendant made out of a polished seal tooth from the Kents Cavern (United Kingdom), which was an inland site during the Magdalenian occupation. Allaby et al. (2026) reconstruct the environment of the Southern River system in southern Doggerland on the basis of sedimentological and sedimentary ancient DNA, and report evidence indicating that early colonization of Doggerland was facilitated by presence of northern refugia during the early Mesolithic. Evidence indicating that early Paleo-Indians from eastern Beringia, North American Clovis complex and South American Fishtail Projectile Point complex were dietary specialists feeding on Pleistocene megafauna is presented by Potter et al. (2026). Eren et al. (2026) argue that Pleistocene sites in North America with proboscidean remains associated with Clovis points representing hunting and scavenging events cannot be reliably distinguished on the basis of available evidence, and argue that Clovis foragers likely practiced both hunting and scavenging of large Pleistocene mammals. Evidence from the study of assemblages of Pleistocene perishable objects from the Cougar Mountain Cave and Paisley Caves (Oregon, United States), indicative of complexity and sophistication of perishable technologies in the North American Great Basin during the Late Pleistocene, is presented by Rosencrance et al. (2026).
== Causes == The most common cause of cauliflower ear is blunt trauma to the ear leading to a hematoma which, if left untreated, eventually heals to give the distinct appearance of cauliflower ear. Participating in contact sports and martial arts is a typical source of such trauma. The structure of the ear is supported by a cartilaginous scaffold consisting of the following distinct components: the helix, antihelix, concha, tragus, and antitragus. The skin that covers this cartilage is extremely thin with virtually no subcutaneous fat while also strongly attached to the perichondrium, which is richly vascularized to supply the avascular cartilage. Cauliflower ear can also present in the setting of nontraumatic inflammatory injury of auricular connective tissue such as in relapsing polychondritis (RP), a rare rheumatologic disorder in which recurrent episodes of inflammation result in destruction of cartilage of the ears and nose. Joints, eyes, audiovestibular system, cardiovascular system, and respiratory tract can also be involved.
Specific gravity—(using a hydrometer test strip or some sort of floating indicator), Refractometer—which measures the refractive index of the antifreeze solution, and Test strips—specialized, disposable indicators made for this purpose. Both specific gravity and refractive index are affected by temperature, although the former is affected much less catastrophically. Temperature compensation is nevertheless recommended for RI measurement. Propylene glycol solutions cannot be tested using specific gravity because of ambiguous results (40% and 100% solutions have the same specific gravity), although typical uses rarely exceed 60% concentration. The boiling point can be similarly determined by a concentration given from one of the three methods. Datasheets for glycol/water coolant mixtures are commonly available from chemical vendors.
Sources: en.wikipedia.org
It is a synthetic compound that acts as an agonist at REV-ERBα and REV-ERBβ. It is used mainly as a research chemical to study circadian and metabolic pathways. It is not approved for human therapeutic use.
REV-ERB receptors generally repress transcription when bound by natural heme. SR9009 is described as an agonist that enhances this repressive activity. The result is altered expression of clock and metabolic genes.
Published controlled human trials are lacking. Some sources cite limited or unofficial reports, but these do not establish safety or efficacy. Claims about human performance effects remain unverified.
Laboratories commonly use liquid chromatography coupled with mass spectrometry to detect SR9009. The method can identify the compound and estimate concentration in a sample. Detection limits depend on the matrix and instrument.