Superior Quality SR9009 Powder For Bodybuilding CAS:1379686-30-2

    What Is SR9009?

    SR9009, commonly referred to as Stenabolic, is not a traditional SARM-though it frequently gets lumped into that category by mistake. Developed by Professor Thomas Burris at the Scripps Research Institute, SR9009 is a synthetic agonist of Rev-ErbA, a nuclear receptor protein that plays a fundamental role in regulating the body's circadian rhythm and metabolic processes. The compound first emerged in scientific literature around 2012-2013, and its initial purpose was purely research-oriented: scientists wanted to understand how manipulating Rev-ErbA activity could influence metabolism, sleep disorders, and various metabolic diseases.

    What makes SR9009 chemically distinct is its molecular structure: C₂₀H₂₄ClN₃O₄S, with a molar mass of 437.94 g·mol⁻¹. In the bodybuilding world, it's available primarily in powder form, which users typically reconstitute or consume directly through sublingual administration. The powder itself is usually described as a fine, off-white to pale yellow crystalline substance, though color variations can occur depending on purity levels and manufacturing processes.

    What sets SR9009 apart from almost every other performance-enhancing compound on the market is its mechanism of action. While anabolic steroids and most SARMs work by binding to androgen receptors to stimulate muscle growth, SR9009 operates through an entirely different pathway. It binds to Rev-ErbAα with an IC₅₀ of 670 nM and to Rev-ErbAβ with an IC₅₀ of 800 nM. This binding essentially "turns on" a cascade of genetic expressions that shift skeletal muscle toward a more oxidative, endurance-oriented phenotype.

    To truly understand SR9009, you need to grasp what happens when it enters the body. The Rev-ErbA proteins that SR9009 targets are expressed heavily in tissues with high energy demands: skeletal muscle, adipose tissue, the liver, and even brain tissue. When SR9009 activates these receptors, several things occur simultaneously.

    First, there's a dramatic increase in mitochondrial biogenesis-the creation of new mitochondria within muscle cells. Mitochondria are often called the "power plants" of cells, and having more of them means your muscles can produce more ATP (energy) during exercise. But it doesn't stop there. SR9009 also promotes the clearance of defective or damaged mitochondria through a process called autophagy. So you're not just adding more power plants; you're also replacing the old, inefficient ones with fresh, high-performing units.

    Researchers who conducted the original animal studies described the effect in striking terms. After treatment with SR9009, mice showed a 50 percent increase in running capacity, measured by both time and distance. Professor Burris himself noted that "the animals actually get muscles like an athlete who has been training" and that "the pattern of gene expression after treatment with SR9009 is that of an oxidative-type muscle-again, just like an athlete".

   This isn't just about endurance, either. The Rev-ErbA pathway influences lipid and glucose metabolism throughout the body. By activating these receptors in the liver, SR9009 helps regulate blood glucose levels and reduces the production of triglycerides. In fat cells, it turns off genes involved in fat storage, making it harder for the body to hold onto excess adipose tissue.

    When people talk about "superior quality" SR9009 powder, they're referring to several specific attributes that distinguish high-grade research material from the lower-quality alternatives that flood the gray market.

    Purity is the first and most obvious factor. Superior quality powder typically tests at 98% purity or higher, verified through third-party laboratory analysis using high-performance liquid chromatography (HPLC) or mass spectrometry. Lower-quality powders may contain residual solvents, unreacted intermediates, or degradation products that not only reduce effectiveness but could introduce unknown toxicity risks.

    Particle size and consistency also matter. High-quality SR9009 powder has a uniform crystalline structure that dissolves predictably in appropriate solvents and absorbs consistently when taken sublingually. Poorly manufactured powder can have inconsistent particle sizes, leading to unpredictable absorption rates and variable effects.

    Stability is another crucial factor. SR9009 is chemically susceptible to degradation when exposed to heat, moisture, or light over extended periods. Superior quality powder is packaged in light-resistant, moisture-barrier containers and often includes desiccants to maintain stability during storage and shipping.

    The source of the raw materials matters, too. Legitimate manufacturers source high-purity precursor chemicals and follow Good Manufacturing Practices during synthesis. The synthesis route itself can affect the final product's purity profile-some methods leave behind more problematic impurities than others.

    SR9009 has carved out a specific niche in the bodybuilding world, and it's not for everyone. This compound shines in particular contexts while being largely irrelevant in others.

    Cutting Phases: This is where SR9009 truly excels. During a cutting cycle, the goal is to shed body fat while preserving as much lean muscle mass as possible. SR9009 attacks this problem from multiple angles simultaneously. It increases basal metabolic rate, meaning you burn more calories even while sitting on the couch. It enhances fatty acid oxidation, so your body becomes more efficient at using stored fat for fuel. And it does all of this without the androgenic side effects that come with traditional cutting agents like clenbuterol or anabolic steroids.

    Endurance Training: Bodybuilders often neglect cardiovascular conditioning in favor of lifting heavy weights. But anyone who's ever tried to push through a high-volume leg day knows that cardiovascular endurance matters. SR9009 improves aerobic capacity by increasing mitochondrial density in muscle tissue, which translates to better work capacity during training sessions and faster recovery between sets.

    Recomposition: For bodybuilders who want to simultaneously lose fat and gain muscle-a notoriously difficult goal to achieve naturally-SR9009 can be a useful tool. By improving metabolic efficiency and supporting muscle preservation during caloric deficits, it helps create the conditions for body recomposition to occur.

    Stacking: SR9009 is frequently stacked with other compounds to amplify specific effects. The most common stack is with Cardarine (GW-501516). While SR9009 boosts metabolism and enhances mitochondrial function, Cardarine operates as a PPARδ agonist that directly influences how the body uses fat for energy. Together, they provide a comprehensive approach to endurance and fat loss. Some users also stack SR9009 with SARMs like RAD-140 or Ostarine during cutting cycles to preserve muscle mass while shedding fat.

    The benefits of SR9009 fall into several distinct categories, and understanding each one helps set realistic expectations.

    Increased Endurance and Stamina: This is the most well-documented benefit, backed by animal research showing a 50% increase in running capacity. Human users report similar subjective effects: cardio sessions that used to feel punishing become manageable, recovery between sets shortens, and overall training volume increases. One user described it as "a clean, steady focus that lasts throughout the day" and noted that "30 minutes on the treadmill felt easier than 10 minutes felt before starting".

    Accelerated Fat Loss: Research on diet-induced obese mice showed that SR9009 treatment led to a 60% greater weight loss compared to placebo groups. While human results won't be that dramatic, users consistently report losing stubborn body fat, particularly in areas like the lower abdomen that typically resist dieting alone.

    Improved Metabolic Health: Beyond the cosmetic benefits, SR9009 appears to improve several markers of metabolic health. Animal studies have shown reductions in blood glucose levels, decreased cholesterol, and improved lipid profiles. For bodybuilders coming off bulking cycles where metabolic health may have suffered, this can be a valuable reset.

    Better Recovery: The same mitochondrial improvements that boost endurance also speed up recovery. Users report feeling "ready to go" between sets much faster than usual, and post-workout soreness seems to diminish in both intensity and duration.

    Circadian Rhythm Support: This is a unique benefit that most performance compounds can't claim. By modulating Rev-ErbA activity, SR9009 helps regulate the body's internal clock, which can improve sleep quality and daytime energy levels. Some users report falling asleep more easily and waking up feeling more refreshed.

    Dosing SR9009 correctly is more complicated than most other research compounds, and this is where many users get it wrong.

    The fundamental challenge is bioavailability. Oral SR9009 has notoriously poor bioavailability-estimates range from 1-2% when swallowed. This means that if you swallow 20mg, only about 0.2-0.4mg actually reaches your bloodstream. Injectable versions, by contrast, offer close to 100% bioavailability.

    For oral administration, most experienced users take SR9009 sublingually rather than swallowing it. This means holding the liquid (or dissolved powder) under the tongue for 60-90 seconds before swallowing. The mucous membranes under the tongue absorb the compound directly into the bloodstream, bypassing first-pass metabolism in the liver. Users report that this method produces noticeably stronger effects.

    The typical daily dosage range is 10mg to 30mg per day. However, due to SR9009's short half-life-approximately 4 to 6 hours-this daily amount must be split into multiple doses throughout the day to maintain stable blood levels.

    A common protocol looks like this:

    Standard Protocol (Oral/Sublingual): 10mg taken three times per day-morning, midday, and late afternoon. Total daily dosage: 30mg. The last dose should be taken no later than 4-5 hours before bedtime, as some users report difficulty falling asleep if they dose too late in the evening.

    Injectable Protocol: For those using injectable SR9009, dosages are significantly lower due to complete bioavailability. Users typically inject 7.5-15mg per day, split into two doses (morning and early afternoon). Injectable versions are less common and carry additional risks related to sterility and injection technique.

    Cycle Length: Most users run SR9009 cycles lasting 6 to 8 weeks. This is followed by an equal period off the compound-typically 6 to 8 weeks-to allow the body to return to baseline.

    The short half-life of SR9009-roughly 4 to 6 hours-is both a limitation and a feature. On the downside, it means you have to be disciplined about dosing multiple times per day. Missing doses leads to blood level fluctuations that reduce overall effectiveness.

    On the upside, the short half-life means SR9009 clears your system relatively quickly. If you experience unwanted effects, stopping the compound will return you to baseline within a day or two. It also means you're not carrying active levels of the compound in your system for extended periods, which may reduce the risk of cumulative side effects.

    The practical implication is that successful SR9009 use requires planning and consistency. Setting alarms on your phone to remind you of dosing times is practically mandatory. Some users prepare their doses in advance using measured droppers or pre-filled oral syringes to simplify the process.

    This is where SR9009 differs dramatically from anabolic steroids and many SARMs. Because SR9009 does not bind to androgen receptors or suppress natural testosterone production, post-cycle therapy is generally not required.

    Most bodybuilding compounds that affect the hypothalamic-pituitary-testicular axis will suppress endogenous testosterone production, necessitating PCT with compounds like Clomid, Nolvadex, or Enclomiphene to restore natural production. SR9009 operates through an entirely different mechanism and does not cause this suppression.

    However, there are a couple of caveats. First, if you're stacking SR9009 with suppressive compounds like RAD-140, LGD-4033, or anabolic steroids, you'll still need PCT to address the suppression caused by those compounds. The SR9009 itself doesn't create the need for PCT, but the rest of your stack might.

    Second, some users choose to run a light PCT protocol anyway, not because SR9009 causes suppression, but because they want to ensure a smooth transition back to their natural hormonal baseline after a cycle involving multiple compounds. This is more about caution than necessity.

Trade names	SR9011,Stenabolic
CAS	1379686-29-9
Molar mass	479.04
MF	C23H31ClN4O3S
Purity	Above 98%
Apprarance	White Cyrstalline Powder

 

 

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    SR9009 represents a genuinely novel approach to performance enhancement, working through circadian rhythm modulation and mitochondrial biogenesis rather than androgen receptor activation. For bodybuilders in cutting phases who need improved endurance, accelerated fat loss, and better recovery without hormonal suppression, it offers a compelling tool.

 

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