YK-11 – Solution, 300mg (10mg/mL)
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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4.6 ★★★★★
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Shay
Chelsea, US
★★★★★ 5
same toy after all these years
Pattern Name: Skunk
i bought this toy from burlington coat factory 7 years ago for my dog when he was a puppy, he recently lost it at the park and this was a perfect replacement. took 2 weeks to arrive but he would say it’s worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
A
Verified Purchase
Alison
Birmingham, US
★★★★★ 5
Annoying sound but DOGGY TOY JOY!!
Pattern Name: Skunk
My 14 month old is squeaker OBSESSED, but she easily does surgery and defluffs. However this toy has been perfect. The sound when you shake is over the top and creates so much excitement. She loves to chase and chew this and play tug with this, and no tears from tug or points where she's tried to excise squeaker so far!
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Reviewed in the United States on January 13, 2021
E
Verified Purchase
E. Frazee
Natrona Heights, US
★★★★★ 5
Great toy loved by 3 big dogs
Pattern Name: Skunk
We have a black lab and 2 grandpups (a Great Dane and a Cane Corso) that visit regularly. All 3 love this toy. All 3 destroy toys pretty quickly, sometimes within minutes. I have no idea what it is about this one, but they have not even remotely destroyed it except for major slobber damage from being so loved. I bought the first one months ago from TJ Maxx and then bought another on here thinking it could be a replacement when the first one got destroyed. The first one has yet to be destroyed. It sounds like there is a water bottle inside of it but it is some kind of coil thing. That being said, this toy can be very annoying to listen to, but we tolerate it for 3 very happy dogs.
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Reviewed in the United States on November 5, 2017
L
Verified Purchase
LDS
Omaha, US
★★★★★ 4
Not for us, unfortunately.
Pattern Name: Chipmunk
Cute idea. We have doxies. Unfortunately, they ripped the apart in 5 minutes to get to the squeaker. I'm sure other breeds are more gentle with their toys. It would be a great toy for them.
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Reviewed in the United States on January 2, 2026
M
Verified Purchase
Mary
Birmingham, US
★★★★★ 5
Very durable
Pattern Name: Chipmunk
Our dog loves this "squeaky." He got it as a gift 11 months ago and I finally had to replace it because he almost had the head and tail chewed off -- took him about a year of chewing. I almost hated to throw the old one away because the squeakers still worked! Our dog is small -- about 22 lbs. -- but is a terrier mix and loves playing tug-of-war with this Zippy toy and he also loves shaking it like crazy. It's a great value compared to the toys I find in the local pet stores. Most of those "die" because he punctures them with his teeth so they no longer squeak. This one is well worth the price.
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Reviewed in the United States on September 28, 2019

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