Consistent suspension formulaBlended in USP-grade PEG-400 to maintain stability and accurate solubility across research applications.
25 mg/mL concentration30 mL bottle (750 mg total) with under 5% concentration variance for reproducible results.
Independently verifiedEach lot is HPLC-tested by an accredited US third-party lab for identity and concentration accuracy.
Research use onlySupplied exclusively for laboratory investigation and development.
| Compound Class | Selective Androgen Receptor Modulator (SARM) · Non-steroidal |
|---|---|
| Concentration | 25 mg/mL |
| Composition | USP-grade PEG-400 base, MK-2866 (≥98% purity) |
| CAS Number | 841205-47-8 |
| Chemical Formula | C19H14F3N3O3 |
| Molar Mass | 389.33 g/mol |
| Half-Life | ~24 hours |
| Synonyms | Ostarine, MK-2866, GTx-024, Enobosarm |
| Volume | 30 mL per bottle (750 mg total) |
| Verified Purity | Batch-tested to 98.04% (HPLC) |
| Terms | For laboratory research use only. Not for human or animal consumption. |
Every batch is analyzed by an accredited US third-party laboratory before it ships.
Accredited testing partner
Purity and identity confirmed by MZ Biolabs (Tucson, AZ), a US DEA-licensed analytical facility, via HPLC purity analysis and mass-spectrometry identity confirmation under GLP standards.
Published certificates of analysis
Our third-party certificates of analysis are published on our website — no login required.
Under 5% concentration variance
Each bottle is formulated and verified for consistent label-to-bottle accuracy across studies.
See all certificates of analysis
Built to preserve compound integrity throughout your research timeline.
Quality control across the research-compound industry is inconsistent, which makes third-party verification essential. A 2017 analysis published in JAMA examined 44 products marketed online as SARMs and reported wide gaps between labels and contents.
52%contained the labeled compound
39%contained an unapproved drug
25%contained an unlabeled substance
9%contained no active ingredient
Source: Van Wagoner et al., JAMA, 2017 (ref. 2).
Third-party tested & certified
Verified by MZ Biolabs (Tucson, AZ), an accredited US laboratory, via HPLC and mass spectrometry.
USP-grade PEG-400
Suspended in the highest grade carrier and bottled in America.
Glass bottles, fixed glass droppers
Prevents BPA leaching and avoids contamination from external tools.
60-day money-back guarantee
Transparent business, standard payment methods, no misrepresentation.
Ostarine (MK-2866) is a non-steroidal, orally bioavailable selective androgen receptor modulator (SARM). Mechanistically, it binds the androgen receptor with tissue-selective affinity, which distinguishes it from steroidal androgens. It was developed as an investigational compound by GTx, Inc. beginning in the late 1990s (ref. 1).
Ostarine remains an experimental research chemical and is supplied strictly for laboratory research. Sports Technology Labs makes no claims regarding its effects, and nothing in this listing should be interpreted as describing outcomes in humans or animals.
Not approved for human use
MK-2866 is an investigational compound. It is not approved by the FDA and is not a dietary supplement, drug, or food. Marketing it for human ingestion is unlawful.
WADA-prohibited
Listed by the World Anti-Doping Agency under S1 (Anabolic Agents — Selective Androgen Receptor Modulators) and prohibited by the NCAA, banned both in- and out-of-competition (ref. 3).
Legal status for research
In the United States, MK-2866 is not a controlled substance and may be legally purchased and possessed for laboratory research use.
Our position
Sports Technology Labs are chemical suppliers, not medical providers. We do not condone or encourage consumer use of research compounds.
Research use only. All products on this website are intended exclusively for laboratory research and development. They are not for human or animal consumption. These statements have not been evaluated by the U.S. Food and Drug Administration, and these products are not intended to diagnose, treat, cure, or prevent any disease.
| Weight | 3.0 oz |
|---|---|
| Dimensions | 3 × 2 × 1 in |
