YK-11 Powder (Myostine)

Buy YK-11 Powder (Myostine) – Premium Research SARM

Buy YK-11 Powder (Myostine) is a potent steroidal selective androgen receptor modulator (SARM) and myostatin inhibitor. First developed as a research compound, YK-11 uniquely combines partial androgen receptor agonism with strong myostatin suppression, making it one of the most powerful muscle-building research tools available. Supplied as high-purity freebase powder, it is ideal for advanced studies on muscle hypertrophy, follistatin upregulation, and selective androgen receptor pathways.

Key Features & Benefits

• Dual action: potent AR agonist + myostatin inhibitor
• Significantly elevates follistatin levels in research models
• Exceptional anabolic potential with reduced androgenic side effects
• Fine, stable powder for precise volumetric dosing
• Valuable for comparative SARM and myostatin pathway studies

Product Specifications

• Chemical name: YK-11 (Myostine)
• Appearance: White to off-white fine crystalline powder
• Form: Freebase
• Molecular formula: C₂₅H₃₄O₆
• Molecular weight: 430.54 g/mol
• CAS number: 431579-34-9
• Storage: Airtight container, cool (2–8°C), dark, dry place

Applications & Usage

YK-11 Powder is sold exclusively for legitimate in-vitro and laboratory research, including:

• Androgen receptor binding and functional assays
• Myostatin inhibition and follistatin upregulation studies
• Muscle hypertrophy and selective anabolic pathway research
• Comparative pharmacology versus other SARMs (RAD-140, LGD-4033, etc.)
• Analytical reference standard preparation Strictly not for human consumption.

Purity & Testing Every batch undergoes independent third-party laboratory verification:

• Purity ≥98% (HPLC)
• Identity confirmed via NMR and/or LC-MS
• Residual solvents & heavy metals below trace limits
• Full Certificate of Analysis (CoA) available upon request

Safety & Handling

Wear appropriate PPE (nitrile gloves, safety goggles, lab coat). Handle only in a fume hood to avoid inhalation, skin contact, or ingestion. Avoid exposure to strong oxidizers or moisture. Store securely and dispose according to local hazardous chemical waste regulations.

Global Shipping & Discreet Delivery

• Express international shipping (3–10 business days average)
• Stealth packaging: vacuum-sealed inner bag inside neutral outer packaging
• No chemical names, labels, or suspicious markings on exterior
• Full tracking number provided for every order
• Reship / replacement policy for documented customs seizures (country-specific restrictions apply)

Why Choose Chemical Center?

• Consistently high purity with transparent third-party testing
• Specialized selection of advanced SARMs and myostatin inhibitors
• Professional, researcher-focused support
• Secure encrypted ordering platform
• Trusted global supplier of research compounds since 2015

Legal & Safety Notice

YK-11 is a research chemical only and is not approved for human or veterinary consumption. It is controlled or prohibited in many jurisdictions and may fall under analogue laws. It is the buyer’s sole responsibility to confirm compliance with all applicable local, national, and international regulations before ordering. Chemical Center supplies exclusively for legitimate scientific research purposes and reserves the right to refuse any order suspected of non-research intent.

Frequently Asked Questions

Q: How does YK-11 differ from other SARMs? YK-11 is unique because it inhibits myostatin (via follistatin upregulation) in addition to acting as a partial androgen receptor agonist.

Q: Is this freebase or a salt? This is high-purity freebase powder. Other salt forms are available separately upon request.

Q: Do you provide Certificates of Analysis? Yes — a complete third-party CoA is available for every batch upon request.

Q: What is the recommended storage? Store in an airtight container in a refrigerator (2–8°C), protected from light and moisture. Freezer storage is acceptable if properly sealed.

Research use only. Not for human consumption.