SKU: 34193662984

YK-11 – Solution, 300mg (10mg/mL)

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Description

YK-11 – Solution, 300mg (10mg/mL)YK 11 YK 11, also known as myostine, is a Selective Androgen Receptor Modulator (SARM) clinically proven to partially activate the androgen receptor while also acting as a myostatin inhibitor. A compelling study led by researchers Lee et al. investigated YK 11 as a potential muscle building and muscle preserving compound under conditions of sepsis. In the experiment, mice were fed two different doses of YK 11 (orally administered at 350 mg kg and 700

YK-11

YK-11, also known as myostine, is a Selective Androgen Receptor Modulator (SARM) clinically proven to partially activate the androgen receptor while also acting as a myostatin inhibitor.

A compelling study led by researchers Lee et al. investigated YK-11 as a potential muscle-building and muscle-preserving compound under conditions of sepsis. In the experiment, mice were fed two different doses of YK-11 (orally administered at 350 mg/kg and 700 mg/kg) for ten days. The researchers then examined how these mice responded to a peritoneal injection of E. coli bacteria.

The study demonstrated that YK-11 inhibited the activity of myostatin, a hormone that limits muscle growth in mammals (source). Not only did the mice treated with YK-11 maintain their body mass during the disease phase, but they also had a more favorable fat-to-muscle ratio, indicating less fat and more lean tissue compared to the control group.

Furthermore, the results showed that the treated mice were able to recover lost muscle mass in the back and thighs following exposure to systemic E. coli. Their muscle cells also demonstrated increased resistance to atrophy when compared to those of the control group.

In addition to its impact on muscle mass, YK-11 also affected the immune response to gram-negative bacteria. The treatment with YK-11 led to reduced negative effects of bacterial infections, including a decrease in endotoxins and inflammatory markers in the lungs.

Moreover, there was a significant reduction in biomarkers indicating organ damage, including liver and kidney markers such as AST, ALT, and BUN. The use of YK-11 also appeared to enhance the removal of harmful bacteria from the mice's organs (source).

Lastly, it's worth noting that the study also examined the survival rate during sepsis, and mice treated with YK-11 had a higher likelihood of surviving up to the 72-hour mark. These treated mice showed little to no evidence of bacterial colonization in their vital organs.

Concentration
10mg/ml.

Half Life
6 – 10 hours.

DISCLAIMER
This material is sold for use in laboratory research only. Terms of sale apply. Not for human consumption, nor for medical, veterinary or domestic use. Please familiarize yourself with our DISCLAIMER before ordering.

 

Data Sheet

YK11 – Solution, 300mg (10mg/mL)

Application Selective Androgen Receptor Modulator, Myostatin Inhibitor
CAS 1370003-76-1
Molar Mass 430.534 g/mol
Chemical Formula C25H34O6
IUPAC Name methyl 2-{5-methoxy-5,15′-dimethyl-5′-oxospiro[1,4-dioxolane-2,14′-tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan]-6′-en-3-ylidene}acetate
Synonyms YK11, YK-11, Myostine
Storage Room temperature
Solubility Soluble in PEG400, Ethanol
Organoleptic Profile Clear liquid
Physical Form Solution in PEG-400 , Ethanol
Specification 10mg/mL ±5%
Terms This material is sold for laboratory research use only. Terms of sale apply. Not for human consumption, nor medical, veterinary, or household uses. Please familiarize yourself with our Terms & Conditions prior to ordering.
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SKU: 34193662984

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CherryHill
Lake Worth, US
★★★★★ 5
Pup’s new favorite chew toy!
My son let one of my pups have a corn cob, which my dog enjoyed immensely. However, son got scolded as these can be very dangerous to dogs, and I disappointed my pup by taking it away. I went to Amazon to see if, by chance, a dog toy existed that was a corn cob. And there we found this- the new favorite of MANY chew toys for my medium size aggressive chewers. I bought two, one for each. They enjoyed “tug-a-war” due to the handy rope end. It squeaks. It’s strong and well made. It’s by far their favorite chew toy. I did store them in the fridge prior to giving them and pretended to eat them to make the pups think they were “real”. The package says they are dog toothbrushes, so a good benefit there as well. I’m sure we will be getting these regularly.
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Reviewed in the United States on June 2, 2025
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nancy hahn
West Palm Beach, US
★★★★★ 1
Quality
I have a 5 lbs puppy. Within 5 minutes of giving him this toy he had pieces of the rope chewed off and in his mouth. Needless to say,into the garbage it went. Disappointed
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Reviewed in the United States on April 24, 2026
W
Verified Purchase
Will
Lake Worth, US
★★★★★ 5
Great Chew Toy for our 50 pound dog
Really great chew toy. Our 50 pound dog loves it. We play fetch with it. Very sturdy and easy to chew.
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Reviewed in the United States on March 1, 2026
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Verified Purchase
Judy C.
San Leandro, US
★★★★★ 5
Great toy
Great for an aggressive chewer. I was pleasantly surprised this toy lasted months with my dog chewing at it. Its one of his favorite toys! It cleans easily rinsing in the sink or running it in the washing machine &holds up very well.
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Reviewed in the United States on January 24, 2026
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Verified Purchase
Robert R.
Chelsea, US
★★★★★ 5
Dogs love it
This our second one. The fogs destroyed the first one. Good toy and great for applying peanut butter in the grooves.
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Reviewed in the United States on June 8, 2026

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