Buy YK-11 Powder (Myostine) Online | High-Purity Myostatin Inhibitor SARM

Introduction to Buy YK-11 Powder (Myostine)

Buy YK-11 Powder (Myostine), widely recognized in the research community as Myostine, is a highly distinct and potent synthetic compound that occupies a unique space in the field of experimental endocrinology and musculoskeletal research. While often classified alongside Selective Androgen Receptor Modulators (SARMs), YK-11 is fundamentally different from non-steroidal SARMs like Ostarine or Ligandrol. Structurally, it is a synthetic steroidal derivative of DHT (Dihydrotestosterone) that functions as a gene-selective agonist.

What sets YK-11 apart is its documented ability to induce the expression of Follistatin, a potent naturally occurring antagonist of Myostatin. Myostatin is a protein that negatively regulates muscle cell differentiation and growth. By inhibiting this pathway alongside direct androgen receptor agonism, YK-11 provides a dual mechanism of action. Supplied as a raw, stable powder, YK-11 offers exceptional versatility for laboratories requiring custom volumetric dosing, in-vitro assay preparation, and analytical calibration. Note: This product is strictly intended for in-vitro research and analytical purposes only.

Key Features and Benefits – Buy YK-11 Powder (Myostine)

• Dual Mechanism Research Model: YK-11 offers researchers the rare opportunity to study a compound that exerts both selective androgen receptor agonism and follistatin-mediated myostatin inhibition in skeletal muscle models.
• Raw Powder Versatility: Supplied as a pure, raw powder, this format allows researchers to create precise, custom-concentration volumetric solutions for in-vitro assays, eliminating the variables of pre-mixed solutions or fixed-dose capsules.
• Enhanced Stability: The raw powdered form of YK-11 is highly stable when stored correctly, ensuring long-term viability for ongoing longitudinal studies and archival reference standards.
• Steroidal SARM Benchmark: Essential for laboratories comparing the receptor conformational changes and tissue selectivity of steroidal SARMs versus non-steroidal Ostarine or Ligandrol analogs.

Product Specifications

• Chemical Name: (17α,20E)-17,20-[(1-Methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester
• Common Designation: YK-11 / Myostine
• CAS Number: 1370003-76-1
• Class: Steroidal SARM / Myostatin Inhibitor / Research Chemical
• Form: Raw Synthetic Powder
• Purity: ≥ 98% (Verified by Independent Third-Party Testing)
• Appearance: White to off-white fine crystalline powder
• Storage Requirements: Store in a cool, dry, dark environment (ideally -20°C for long-term archival). Keep container tightly sealed under inert gas to prevent moisture absorption and degradation.
• Solubility: Soluble in DMSO, ethanol, and PEG; practically insoluble in water.

Applications and Usage

YK-11 Powder is exclusively designated for in-vitro (outside a living organism) research and analytical applications. Common laboratory applications include:

• Myostatin/Follistatin Pathway Studies: Investigating the upregulation of Follistatin gene expression and the subsequent inhibition of the TGF-β/myostatin signaling cascade in skeletal muscle cell cultures (e.g., C2C12 myotubes).
• Androgen Receptor Binding Assays: Analyzing the unique conformational changes induced by YK-11 at the androgen receptor compared to non-steroidal SARMs and traditional anabolic steroids.
• Analytical Calibration: Utilizing the raw powder as a certified reference material (CRM) for LC/MS and GC/MS spectroscopy to validate instruments and quantify YK-11 metabolites in biological matrices.
• Comparative SARM Pharmacology: Contrasting the pharmacodynamic profile and gene-selective properties of steroidal SARMs versus non-steroidal analogs.

Disclaimer: This product is not for human or veterinary consumption. It must only be handled in controlled laboratory environments by qualified professionals.

Purity and Testing

We guarantee a purity level of ≥ 98% for our YK-11 Powder. Every batch undergoes rigorous, independent third-party testing to verify chemical identity, absolute purity, and the absence of dangerous residual solvents, heavy metals, or unreacted steroidal precursors. We ensure our YK-11 is free from impurities commonly found in inferior synthetics. Certificates of Analysis (CoA) and Safety Data Sheets (SDS) are provided upon request, ensuring complete traceability and compliance for your research institution.

Safety and Handling

As a potent investigational steroidal research chemical, YK-11 Powder must be handled with strict laboratory safety protocols:

• Personal Protective Equipment (PPE): Always wear appropriately sized nitrile gloves, chemical-resistant safety goggles, and an N95 or P100 particulate respirator when weighing or transferring the powder.
• Ventilation: Handling must only occur within a certified chemical fume hood to prevent the inhalation of aerosolized particles.
• Accidental Exposure: In the event of skin contact, wash the area thoroughly with soap and water. For eye contact, flush with copious amounts of water for at least 15 minutes.
• Hygiene: Remove contaminated clothing immediately and wash hands thoroughly after handling, even when PPE is utilized.

Global Shipping and Discreet Delivery

• Global Reach: We ship YK-11 Powder internationally, in strict compliance with international shipping regulations.
• Discreet Packaging: All orders are dispatched in unmarked, tamper-evident, and odor-proof packaging. The outer packaging does not indicate the nature of the contents.
• Rapid Processing: Orders are processed and shipped within 24 hours of cleared payment. We offer standard and express courier options with full end-to-end tracking.
• Secure Handling: Powders are double-sealed in moisture-barrier bags and placed within sturdy outer containers to prevent damage during transit.

Why Choose Us To Buy YK-11 Powder (Myostine)?

• Uncompromising Quality: We work directly with top-tier chemical synthesis laboratories and verify every batch in-house and via third-party labs before it reaches you.
• Total Transparency: We provide full analytical data. What is on the label is exactly what is in the bag—no fillers, no impurities, no compromises.
• Expert Customer Support: Our support team understands the nuances of research chemicals and is ready to assist with CoA requests, shipping inquiries, and technical questions.
• Secure Transactions: We utilize SSL encryption and accept secure, discreet payment methods, including major cryptocurrencies (Bitcoin, Monero, Ethereum) and secure bank transfers.

Legal and Safety Compliance

YK-11 (Myostine) Powder is sold strictly as a research chemical and is not approved by the FDA, EMA, or any equivalent regulatory body for human or veterinary use. It is an investigational compound.

It is the sole responsibility of the purchaser to ensure that the acquisition, possession, and use of YK-11 comply with all local, state, national, and international laws. Warning: YK-11 is prohibited by the World Anti-Doping Agency (WADA) and is banned in all competitive sports. Furthermore, due to its steroidal backbone, it may fall under analogue acts or stricter regulations regarding anabolic agents in various jurisdictions (including the USA and Australia). We do not ship to regions where this compound is explicitly prohibited for purchase. By purchasing from us, you affirm that you are a qualified researcher or institutional buyer over the age of 18, and you assume all legal liability for the product upon delivery.

Frequently Asked Questions (FAQ)

Q1: What makes YK-11 different from other SARMs like Ostarine or Ligandrol?
A: Unlike Ostarine and Ligandrol, which are non-steroidal SARMs, YK-11 has a steroidal (DHT-derived) backbone. More importantly, YK-11’s primary research interest lies in its unique secondary mechanism: it induces the expression of Follistatin, which actively inhibits Myostatin—the protein responsible for limiting muscle growth. This dual-action profile sets it apart from all other SARMs.

Q2: Why buy YK-11 in raw powder form instead of capsules?
A: Raw powder offers maximum flexibility for laboratory researchers. It allows for the creation of highly specific, custom-concentration volumetric dosing tailored to unique in-vitro assay requirements (e.g., C2C12 cell studies). It also guarantees no degradation from capsule excipients and allows for long-term stable storage without solvent breakdown.

Q3: Can YK-11 Powder be consumed by humans?
A: Absolutely not. YK-11 is a potent, investigational research chemical. Early clinical data suggests it can significantly suppress endogenous testosterone and affect hepatic lipids. It is strictly for in-vitro laboratory and analytical research. Ingestion is strictly prohibited.

Q4: Do you provide a Certificate of Analysis (CoA)?
A: Yes. We provide a comprehensive CoA—including HPLC, GC/MS, and NMR data—for every batch we sell. This guarantees the identity, purity, and safety of the compound for your analytical research.

Q5: Is it legal to buy YK-11 in my country?
A: Legality varies drastically. While legal for legitimate research in many parts of the world, SARMs and steroidal derivatives are heavily regulated in the USA, Australia, and parts of Europe. We cannot provide legal advice. It is your responsibility to research your local laws before placing an order.

Q6: How should I store YK-11 Powder for long-term research?
A: For maximum longevity, store YK-11 powder in an airtight, amber glass vial under an inert gas (like Argon) in a freezer set to -20°C. Keep away from direct sunlight, heat, and moisture. When properly stored, the raw powder remains stable for years.