- HPLC purity ≥98% with identity check; per-lot COA on request
- Certificate of analysis tied to your lot number
- Tracked EU delivery, dispatched the next working day
MK-2866 (Ostarine)
Enobosarm — non-steroidal SARM supplied as capsules or a liquid
In stock2 formats availableCAS 841205-47-8
€55Range €55 – €68
This listing is currently unavailable. Contact us and we will tell you when it is back or suggest an equivalent.
Ask about this listing or request its COA- FormOral capsules in a sealed bottle, or solution in a 30 mL dropper bottle
- Mol. weight389.33 g/mol
- Research areasAndrogen receptor pharmacology, tissue-selective anabolic signalling, muscle-wasting and bone-density models, doping-control analysis
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
The whole SARM class was designed around one question in pharmacology: can a compound activate the androgen receptor in a tissue-selective way — clearly building muscle and bone, yet acting differently from testosterone or synthetic anabolic steroids in the prostate and other…
- CAS number
- 841205-47-8
- Molecular formula
- C19H14F3N3O3
- Molecular weight
- 389.33 g/mol
- Purity
- ≥98% by HPLC with identity confirmation; lot-matched COA available
- Form
- Oral capsules in a sealed bottle, or solution in a 30 mL dropper bottle
- Storage
- Cool, dry conditions away from direct light; refrigeration extends shelf stability
- Available sizes
- 10 mg · 60 capsules · 30 mL liquid · 20 mg/mL
For research use only. Not for human consumption.
The whole SARM class was designed around one question in pharmacology: can a compound activate the androgen receptor in a tissue-selective way — clearly building muscle and bone, yet acting differently from testosterone or synthetic anabolic steroids in the prostate and other reproductive organs? Researchers usually attribute that selectivity to the particular shape the receptor takes with each ligand, to differences in which coregulators it recruits, and to the fact that — ostarine not being a steroid — neither 5-alpha-reductase nor aromatase can convert it.
No compound in the class has a longer development history than ostarine (MK-2866), which also appears under the names enobosarm, GTX-024 and S-22. Chemically it is an aryl-propionamide, a family that grew out of the first non-steroidal antiandrogens rather than from any modified steroid. Weighing 389.33 g/mol, with the formula C19H14F3N3O3, it contains no steroid rings, and since neither aromatase nor 5-alpha-reductase acts on it, the complications caused by metabolites in testosterone research don't arise. We stock two forms from material HPLC-tested to at least 98%: a bottle of 60 capsules of 10 mg when a fixed amount per unit is wanted, or 30 mL of 20 mg/mL solution for dilution series. A large, separate body of literature deals with detecting ostarine and its metabolites in doping tests.
Specifications
Identity
- CAS number
- 841205-47-8
- Molecular formula
- C19H14F3N3O3
- Molecular weight
- 389.33 g/mol
Supply & purity
- Form
- Oral capsules in a sealed bottle, or solution in a 30 mL dropper bottle
- Purity
- ≥98% by HPLC with identity confirmation; lot-matched COA available
- Solubility
- Poorly water soluble; soluble in ethanol, DMSO and polyethylene glycol vehicles
Additional detail
- Available options
- 10 mg × 60 capsules; 30 mL liquid at 20 mg/mL
- Also known as
- Ostarine, enobosarm, GTx-024, S-22
- Compound class
- Non-steroidal selective androgen receptor modulator (aryl-propionamide)
- Molecular target
- Androgen receptor (NR3C4), partial agonist activity in the reported literature
- Metabolic note
- Not a substrate for aromatase or 5-alpha-reductase
- Research areas
- Androgen receptor pharmacology, tissue-selective anabolic signalling, muscle-wasting and bone-density models, doping-control analysis
- Storage
- Cool, dry conditions away from direct light; refrigeration extends shelf stability
Questions about MK-2866 (Ostarine)
Is ostarine a peptide?
No. It is a small non-steroidal organic molecule from the aryl-propionamide class (C19H14F3N3O3, 389.33 g/mol). It is listed next to research peptides because the same labs study both, not because the structures are alike.
In which formats is it sold?
Two: capsules — 60 per bottle, 10 mg each — or a 30 mL bottle of solution at 20 mg/mL for measuring by volume. Capsules give you a set amount per unit, while the liquid is the better choice for serial dilutions and for in-vitro or animal studies that need a matching vehicle control.
Does an outside lab verify it?
Yes. An independent laboratory analyses every lot by HPLC with identity confirmation, and the Certificate of Analysis for your batch is available. Check the container's lot number against the COA before you log any data.
How do I store the two formats?
Both should be kept sealed, cool, dry and out of direct light. Refrigeration lengthens shelf stability and is usual for the solution; let a cold container warm to room temperature before opening so condensation cannot affect the contents.
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