For research use only.
Catalog No.S1174 Synonyms: MK-2866
CAS No. 841205-47-8
Ostarine (GTx-024, MK-2866) is a selective androgen receptor modulator (SARM) with Ki of 3.8 nM, and is tissue-selective for anabolic organs. Phase 3.
Selleck's Ostarine (GTx-024) has been cited by 7 publications
Purity & Quality Control
Choose Selective Androgen Receptor Inhibitors
|Description||Ostarine (GTx-024, MK-2866) is a selective androgen receptor modulator (SARM) with Ki of 3.8 nM, and is tissue-selective for anabolic organs. Phase 3.|
|Features||The most potent and tissue-selective in vivo activity of SARMs to date, with favorable pharmacokinetic properties.|
Ostarine at the concentration of 10 nM modulates the transcriptional activity of AR in CV-1 cells cotransfected with a human AR expression vector, a luciferase reporter vector, and a control β-galactosidase vector, with 94%-100% relative activity of the transcriptional activation observed for 1 nM DHT.  
|In vivo||After intravenous administration of Ostarine at a single dose of 10 mg/kg, plasma concentration of Ostarine declines slowly, exhibiting a longer terminal half-life of 6.0 hours, as compared to that of other related cyano/nitro group-substituted SARMs with terminal halflives of 2.6-4.0 hours. Ostarine exhibits significantly androgenic and anabolic activity by stimulating the growth of prostate, seminal vesicles, and levator ani muscle when administered in castrated male rats; Ostarine is more potent than other cyano/nitro group-substituted SARMs. Ostarine restores the weight of the prostate to 39.2%, and seminal vesicle 78.8%, and stimulates the growth of levator ani muscle to a greater extent of 141.9% as compared with that of androgenic organs. Ostarine exhibits the highest in vivo androgenic and anabolic activity of any AR nonsteroidal agonist examined to date, with ED50 values of 0.12, 0.39 and 0.03 mg/day in prostate, seminal vesicles, and levator ani muscle, respectively, being 4 times as potent as testosterone propionate (TP) in levator ani muscle. At low dose of 0.03 mg/day, Ostarine is sufficient to exert efficacious and selective activity in anabolic tissues. |
|In vitro||DMSO||78 mg/mL (200.34 mM)|
|Ethanol||78 mg/mL (200.34 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
1% DMSO+30% polyethylene glycol+1% Tween 80
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
In vivo Formulation Calculator (Clear solution)
|Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)|
|Dosage||mg/kg||Average weight of animals||g||Dosing volume per animal||ul||Number of animals|
|Step 2: Enter the in vivo formulation ()|
|% DMSO % % Tween 80 % ddH2O|
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take μL DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT04869943||Not yet recruiting||Drug: Enobosarm|Drug: Exemestane||Metastatic Breast Cancer||Veru Inc.||June 30 2021||Phase 3|
|NCT03566290||Terminated||Drug: GTx-024||Stress Urinary Incontinence||GTx||June 28 2018||Phase 2|
|NCT00467844||Completed||Drug: GTx-024|Drug: Placebo||Cachexia||GTx||May 2007||Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.
Frequently Asked Questions
Regarding S1174, can you tell me if this is the (L) enantiomer, (R) enantiomer or a mixture of both?
S1174 Ostarine(MK-2866) is (S) enantiomer.