MK-2866 (Ostarine) Capsules

Introduction

MK-2866 (ostarine) capsules contain enobosarm, also coded GTx-024, S-22, and VERU-024. The assigned structure is (2S)-3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide, an arylpropionamide with two nitrile groups and one trifluoromethyl group. It is not a steroid and is distinct from YK-11.

Enobosarm has been studied as an investigational selective androgen receptor modulator for muscle wasting and, more recently, for androgen-receptor-positive breast cancer. It is not an approved medicine. In the United States it has investigational-new-drug status, which is not a marketing authorization. Analytical suppliers list it as a forensic reference because products sold as ostarine have been found in anti-doping cases.

The milligram figure on the capsule is the declared amount of MK-2866 per unit. It is not a recommended amount for any use. Excipients must be listed, because the capsule mass is not the same as the active content.

Key features and benefits – Buy MK-2866 (Ostarine) Capsules

• Nonsteroidal SARM scaffold. The arylpropionamide, two nitriles, and CF3 group distinguish it from ligandrol and from steroidal SARMs.
• Defined stereochemistry. The clinical compound is the (S) enantiomer. A racemate is a different material.
• Unit fill. A capsule declares a fixed content, which supports uniformity checks without weighing bulk powder.
• Documented identity. CAS 841205-47-8, PubChem CID 11326715, formula C19H14F3N3O3, molar mass 389.33 g·mol−1.
• Laboratory-only handling. Intended for controlled chemical and in vitro work, not for dietary or performance use.

Specifications Of Buy MK-2866 (Ostarine) Capsules

Applications in research

Appropriate uses are non-clinical and institutionally approved:

• Content-uniformity and assay checks on a labeled capsule strength.
• HPLC, LC-MS, and NMR identification of enobosarm after extraction from the capsule fill.
• Forensic screening of products labeled as ostarine or MK-2866.
• Androgen-receptor binding or reporter assays where the protocol covers this compound and the excipients are accounted for.
• Comparison of capsule fill with bulk enobosarm of the same CAS.

Do not describe or imply oral use, stacking, or any human performance protocol. Do not treat the labeled milligrams as a dose.

Purity and testing

A defensible product claim rests on the batch certificate and an assay of the filled unit.

• HPLC of the extracted fill for chromatographic purity and for assayed content per capsule against the label.
• 1H NMR and 19F NMR, or LC-MS, to confirm the arylpropionamide and the CF3 group.
• Mass spectrometry for the molecular ion consistent with C19H14F3N3O3.
• Chiral check if the supplier claims the (S) enantiomer.
• Excipient list, and a check that fillers do not co-elute with the active.
• Content uniformity across units if the supplier states it.

Store the COA with the lot number. Do not treat a racemic or unnamed isomer as enobosarm without that check.

Disclaimer

For laboratory research use only. Not for human or veterinary consumption, not for diagnostic or therapeutic use, and not a food, drug, or dietary supplement. The capsule strength is fill weight, not a dosing instruction. Enobosarm is an investigational compound, not an authorized medicine. SARMs are prohibited by the World Anti-Doping Agency at all times. Health authorities have warned of possible cardiovascular and liver risks from SARM-containing bodybuilding products. Legal status varies. Buyers are responsible for confirming legality, licensing, import rules, and institutional approval before ordering or handling. Handle with standard laboratory PPE and dispose of waste under local hazardous-chemical rules. No statement on this page is a claim of safety, efficacy, or fitness for any human application.

Frequently asked questions

What is in the capsule?
The active is enobosarm, also called ostarine and MK-2866, a nonsteroidal SARM, formula C19H14F3N3O3. Fillers must be listed separately from the active.

What does the milligram label mean?
It is the declared amount of MK-2866 per capsule. It is not a recommended dose. Confirm whether the figure is active content or total fill weight.

Is this the same as ligandrol or YK-11?
No. Ligandrol is LGD-4033, a pyrrolidinyl benzonitrile. YK-11 is a steroidal SARM. Ostarine is an arylpropionamide (CAS 841205-47-8).

Which CAS number applies?
CAS 841205-47-8 for the active. Confirm the (S) configuration on the COA, not only the CAS.

How should capsules be stored?
Sealed, cool, dry, and protected from light. Keep the lot number with the COA.

Can they be used in humans?
No. They are not an approved drug or supplement and are not sold for consumption. Anti-doping rules prohibit SARMs. Check local law before purchase.

What analytical methods confirm identity?
HPLC assay of the extracted fill against the label, NMR or LC-MS for the nitriles and CF3 group, and mass spectrometry consistent with C19H14F3N3O3. A chiral check is needed if the (S) enantiomer is claimed.