High Quality YK11/YK-11 Sarms Raw Powder CAS NO.431579-34-9

  • CasNo431579-34-9
  • Molecular FormulaC25H34O6
  • Purity99.5%
  • AppearanceWhite Powder

Product Details

Quick Details

  • CasNo: 431579-34-9
  • Molecular Formula: C25H34O6
  • Appearance: White Powder
  • Delivery Time: 3days after we receive the payment
  • Throughput: 1000|Kilogram|Month
  • Purity: 99.5%

Sarms Powder Muslce Building YK11 CAS NO.431579-34-9

Product name YK-11
Chemical name (17a,20E)-17,20-[(1-Methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna- 4,20-diene-21-carboxylic Acid Methyl Ester
Category Sarm
CAS 431579-34-9
M.W 624.77
MF C25H34O6
Half Life 24 hours
Storage at 20ºc 2 years


Product Details

1. In direct comparison to to lgd-4033 as the reference for assay upon animal models of anabolism and androgenicity, yk-11 demonstrated higher efficacy withing anabolic parameters and lesser androgenicity at equivalent dosages.

2. It induces muscle cells to make more follistatin which is a strong myostatin inhibitor. myostatin (also known as growth differentiation factor 8, is a myokine (protein) produced by muscle cells that acts on muscle cells to inhibit myogenesis.


3. Myogenesis is muscle cell growth and differentiation. research through the years show that when you block myostatin, it allows for significantly more muscle mass. so in research myostatin inhibitors are researched to find cures for muscle diseases.

4. We expect yk11 to be more potent than sarm lgd in terms of overall growth and feel. at this time, we expect this to be the strongest sarm on the market at a regular dosing.


5. While suppression can occur, we expect this product to have low androgenic properties and can be used by both men and women. from our experience with sarms, we find there are less losses of on-cycle results than pro-hormones, although typically not as potent.


6. We do expect this product to have similar results as a moderately dosed halodrol, without the alpha-male/androgenic feelings while on it.




1.YK11 attaches itself to the ar (androgen receptor), but only inducts methods that lead to the traditional side effects of androgens such as growth of body hair and prostate and enhanced aggression - to a restricted degree.

2. Most sarms have quite limited androgenic side effects, but frequently only quite few anabolic effects when likened to testosterone. but, this doesn't occur for yk11 as reported in biological and pharmaceutical bulletin in 2013.

3. Kanno tested c2c12 muscle cells and not lab animals or humans. it has been discovered that muscle cells produce more anabolic factors if exposed to 500 nmol (nanomoles) yk11 than if you expose the same muscle cells to 500 nmol dht.

4. YK11 induces muscle cells to make more follistatin (more than dht does) - a strong myostatin inhibitor. yk11 works through the androgen receptor.

5. With that said, yk11 can be as good as testosterone in terms of muscle strengthening, but minus the detrimental side effects.