YK-11 100G Raw Powder | Myostatin Inhibitor
🌏 China Warehouse
QSC YK-11 (Myostatin Inhibitor / Partial AR Agonist) — ≥99% HPLC purity, MS confirmed, Janoshik COA. 100G bulk. Research use only.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
{“@context”: “https://schema.org”, “@type”: “FAQPage”, “mainEntity”: [{“@type”:”Question”,”name”:”How is this raw powder supplied?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”QSC raw powder compounds are supplied as bulk crystalline or amorphous powder in a sealed, labelled container at the stated quantity. No reconstitution is required — the powder is ready for weighing and use in research applications.”}},{“@type”:”Question”,”name”:”How should this raw powder be stored?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Store at room temperature (15–25°C) in a cool, dry place away from moisture, heat, and direct light. Keep in the original sealed container. Properly stored raw powder remains stable for 2–3 years.”}},{“@type”:”Question”,”name”:”What purity is this QSC raw powder and how is it verified?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”All QSC raw powder compounds are tested to ≥99% purity by HPLC on every production batch, with MS-confirmed identity. COA is published on the product page and independently verifiable at verify.janoshik.com.”}}]}
What is YK-11?
YK-11 is a steroidal myostatin inhibitor and partial AR agonist with a unique dual mechanism — induces follistatin (blocking GDF-8/myostatin anti-anabolic signalling) while providing partial androgenic activity. Research tool for myostatin biology, follistatin induction, and SARM-adjacent muscle growth pharmacology. Research use only.
Research Applications
Myostatin Inhibition
Follistatin induction, GDF-8 pathway suppression, muscle mass ceiling removal
Follistatin Biology
Follistatin mechanism, ActRIIB pathway, downstream myogenic signalling
Dual Mechanism Research
AR partial agonism + myostatin inhibition — isolated vs combined pathway dissection
Muscle Hypertrophy Models
Satellite cell activation without myostatin constraint, fibre size studies
Myostatin vs Follistatin
YK-11 follistatin vs direct anti-myostatin antibodies — comparative effectiveness
Quick Specs
| Form | Raw bulk powder (crystalline/amorphous) |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 1370003-76-1 |
| Molecular Formula | C₂₅H₃₄O₆, MW 430.5 |
| Identity | MS molecular weight confirmed — every batch |
| Compound Type | Myostatin Inhibitor / Partial AR Agonist |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house synthesis — Qingdao, China |
| Storage | Room temperature sealed | cool, dry storage |
| Shelf Life | 24 months (unopened) |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
A seemingly elegant design can quickly begin to bloat with unexpected content or break under the weight of actual activity. Fake data can ensure a nice looking layout but it doesn’t reflect what a living, breathing application must endure. Real data does.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.
A seemingly elegant design can quickly begin to bloat with unexpected content or break under the weight of actual activity. Fake data can ensure a nice looking layout but it doesn’t reflect what a living, breathing application must endure. Real data does.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.
Reviews
Clear filtersThere are no reviews yet.