Buy YK-11 (Myostine) Capsules – Next LVL Muscle

Product Overview

YK-11 Myostine Capsules provide a high-purity (≥98%), brandless research chemical in encapsulated format, optimized for advanced laboratory applications in analytical chemistry and steroidal modulator studies. As a reference standard, this compound enables qualified researchers to investigate molecular stereochemistry, solubility profiles, and receptor interactions within strictly in vitro controlled environments. The capsule design ensures dust-free precision dosing and batch consistency, making it suitable for reproducible non-clinical experimental sequences in institutional laboratories.

For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.​

Chemical Identity & Classification

YK-11 Myostine is identified by CAS number 1370003-76-1, securing its standardized listing in global chemical databases for accurate referencing. The molecular formula C25H34O6 corresponds to a molecular weight of 430.54 g/mol, offering researchers precise data for mass spectrometry and quantitative method development. Synonyms include Myostine and (17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester classify it as a synthetic steroidal analytical reagent and reference standard for partial androgen receptor agonist research. This positions it for in vitro structural and binding analyses conducted by trained professionals.

Chemical & Physical Characteristics

YK-11 within capsules presents as a white to off-white crystalline powder, contained in research-grade shells to support clean laboratory handling and transfer. It demonstrates solubility in DMSO (up to 64 mg/mL with heating), moderate solubility in methanol and chloroform, and low aqueous solubility, guiding solvent selection for analytical dissolutions. Key properties include seven stereocenters (six defined), a diastereomeric ratio of approximately 5:1 favoring the active form, density around 1.22 g/cm³, and light/moisture sensitivity requiring protected conditions, with the orthoester moiety contributing structural uniqueness. These neutral characteristics enable reliable performance in HPLC separations, LC-MS identifications, and NMR spectroscopy for diastereomer profiling.

Purity & Analytical Verification

YK-11 Myostine Capsules are produced to ≥98% purity standards, verified using High-Performance Liquid Chromatography (HPLC), Liquid Chromatography-Mass Spectrometry (LC-MS), Nuclear Magnetic Resonance (NMR), and chiral analysis to confirm diastereomeric composition. Methods ensure trace impurities such as heavy metals (<5 ppm), residual solvents (ICH compliant), and synthetic byproducts remain below detection limits suitable for reference applications. Each lot includes a Certificate of Analysis (COA) with purity quantitations, spectral data, stereocenter confirmations, and impurity profiles, available for laboratory quality control integration. This multi-method validation supports accurate standard preparations and long-term stability monitoring.

Quality Control & Batch Integrity

Capsule manufacturing incorporates unique lot numbering for complete traceability from steroidal synthesis through palladium-catalyzed carbonylation to final fill verification. Quality processes include fill-weight uniformity, diastereomer ratio consistency (5:1 target), and third-party testing for potency and contaminants, ensuring capsule-to-capsule reliability. Stability studies under ICH conditions confirm 24-36 month shelf life, with retention samples preserved for re-analysis in extended research programs. Comprehensive records covering synthetic yields (43-63% optimized), ligand optimizations, and environmental controls provide laboratories with documentation for serial studies and compliance reviews. This integrated approach eliminates variability across production runs.

Safety, Handling & Laboratory Precautions

Handle YK-11 Myostine Capsules only by trained personnel in equipped analytical labs using PPE such as nitrile gloves, safety goggles, lab coats, and fume hoods to prevent powder release. Inspect capsules for defects prior to use; spills require immediate containment with inert materials and disposal per SDS guidelines for irritant hazards (GHS07). SDS references classify potential skin, eye, and respiratory irritation, mandating eyewash stations and ventilation without non-lab implications. Waste management follows institutional hazardous protocols including segregation and incineration by authorized staff.

Packaging, Labeling & Storage

YK-11 Myostine Capsules are supplied in tamper-evident HDPE bottles or blister packs with desiccants to protect against humidity and light degradation. Labels detail CAS 1370003-76-1, C25H34O6, ≥98% purity, batch/lot numbers, hazard symbols, and storage instructions compliant with international standards. Store at -20°C in a desiccator under inert atmosphere to maintain diastereomeric integrity for up to 36 months; aliquot upon receipt to minimize exposure.

Intended Research Use & Market Positioning

YK-11 Myostine Capsules target analytical chemistry, steroidal SARM validations, myostatin pathway modeling, and academic follistatin induction studies requiring encapsulated reference materials. They facilitate investigations into partial AR agonism, osteoblast proliferation, and diastereomer-specific binding in cell reporter assays—all in vitro. As a generic high-purity (≥98%) option branded “Next LVL Muscle” quality, it provides scalable economics for high-throughput research without proprietary constraints. Essential for SAR refinements, stereochemical resolutions, and myogenic signaling analytics in legitimate laboratory contexts.

Ordering, Availability & Fulfillment

YK-11 Myostine Capsules maintain consistent stock for immediate purchase via secure WooCommerce platforms with encrypted payment processing. Orders ship discreetly in protective packaging with tracking, delivering in 3-7 business days globally. Support services offer COA requests, bulk pricing, and order status updates to meet researcher needs efficiently.

Legal & Regulatory Disclaimer

YK-11 Myostine Capsules (CAS 1370003-76-1) are sold strictly for laboratory research purposes only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications. Buyers are responsible for ensuring full compliance with all applicable local, national, and international regulations.