YK‑11 (Myostine) – 5mg

Description

YK 11 5mg is available from El Toro Supps. Check the exact compound name, listed quantity and product photographs together when comparing this item with other research listings.

YK 11 5mg: product information

El Toro YK-11 (Myostine) is a synthetic steroidal Selective Androgen Receptor Modulator (SARM) analogue supplied strictly for in-vitro and laboratory research.

It is a partial androgen receptor (AR) agonist that also acts as a myostatin signalling inhibitor, making it a valuable compound for scientific studies investigating androgen receptor pharmacology, cellular signalling, and myogenic gene regulation.

YK-11 promotes muscle growth in studies by stimulating follistatin production and inhibiting myostatin.

Each tablet contains 5 mg of YK-11, produced in ISO-accredited clean-room facilities under Good Manufacturing Practice (GMP) and Good Laboratory Practice (GLP) standards to ensure exceptional purity, reproducibility, and traceability.

Chemical Background / Research Profile

The chemical formula of YK-11 is C₂₅H₃₄O₆, with a molecular weight of approximately 430.54 g/mol.

YK-11 belongs to the myostatin-modulating subclass of SARMs and is structurally related to dihydrotestosterone (DHT), while remaining functionally distinct due to its partial agonism at the androgen receptor.

In research settings, YK-11 is used to:

• Examine androgen receptor binding affinity and partial agonist behaviour.

• Study inhibition of myostatin (GDF-8) signalling and related protein pathways.

• Investigate myogenic differentiation, cell proliferation, and gene transcription in in-vitro models.

• Explore ligand-receptor selectivity and structure–activity relationships (SARs) in synthetic AR modulators.

Its unique dual mechanism—combining AR activation with myostatin pathway suppression—makes YK-11 an important reference compound in receptor pharmacology and muscle cell molecular biology research.

Purity and Quality Assurance

El Toro YK-11 is verified to ≥ 98 % purity, confirmed using High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS).

Every batch is produced and packaged under ISO-certified laboratory conditions, ensuring sterility and chemical integrity.

Each tablet is supplied with a Certificate of Analysis (CoA) confirming purity, molecular structure, batch number, and expiry date for full documentation compliance and traceability.

Laboratory Handling and Storage

• Store at 20–25 °C in a cool, dry, and dark environment.

• Protect from moisture, light, and heat.

• Dissolve using suitable analytical-grade solvents under aseptic laboratory conditions.

• Avoid repeated freeze–thaw cycles and cross-contamination.

• Dispose of any unused compound in accordance with institutional COSHH and chemical-safety protocols.

Researchers must handle all SARM materials using appropriate PPE (gloves, lab coat, and protective eyewear) within authorised facilities.

Safety, Compliance and Restrictions

YK-11 (Myostine) is not a medicinal product, not approved for human or veterinary use, and must not be consumed, injected, or used diagnostically or therapeutically.
It is supplied solely for scientific and in-vitro research.

El Toro operates in full compliance with MHRA, REACH, and COSHH standards regulating the lawful handling of non-medicinal research chemicals.

All products are batch-tested, documented, and traceable, ensuring reliability and ethical compliance for professional laboratory use.

Through precision synthesis, stringent quality control, and verified purity, El Toro provides YK-11 5 mg as a dependable research compound for advanced studies into androgen receptor activity, myostatin inhibition, and molecular muscle biology.

Explore related research listings

For more YK 11 5mg information, review the product details above and the packaging shown in the gallery. Browse our SARMs and related compounds to compare other listings, or contact El Toro with a question about the exact product. Supplied for laboratory research only; not for human or animal consumption.