Description
MK-29, also known as OTR-AC or Ostarine-O-Acetate, is a chemically modified form of MK-2866 (Ostarine) featuring an acetate ester. This structural alteration is designed to improve pharmacokinetics, particularly by enhancing lipid solubility and cellular membrane permeability, which may lead to faster absorption and greater oral bioavailability in research models.
MK-29 retains the selective androgen receptor binding properties of Ostarine, acting as a non-steroidal SARM that promotes anabolic activity in muscle and bone, while minimizing androgenic effects in reproductive tissues. The esterification with an acetate group functions as a prodrug mechanism, gradually releasing the active MK-2866 after administration.
In laboratory research, MK-29 has shown potential to:
- Facilitation of myotrophic activity, including increased preservation of lean muscle mass, with potency metrics comparable to or exceeding those observed with MK-2866 under equivalent experimental conditions.
- Positive modulation of skeletal mineral density and biomechanical bone properties, relevant to models of disuse, osteopenia, or hormonally induced bone loss.
- Improved compound permeability and uptake kinetics, particularly when formulated in lipid-based or encapsulated delivery matrices, suggesting enhanced transport across biological membranes.
- Retention of selective androgen receptor modulator (SARM) specificity, with a favorable tissue distribution profile minimizing activation in androgen-sensitive peripheral tissues in non-reproductive systems.
- Altered pharmacokinetic and metabolic profile, potentially resulting in prolonged systemic exposure due to ester-mediated modulation of absorption and hydrolysis rates.
Although direct human data is lacking, MK-29 is of interest for studies seeking controlled-release SARMs, improved oral dosing efficiency, and enhanced performance of known actives like Ostarine.
CAS Number: Not officially registered; derived compound
Molecular formula: C21H18F3N3O4 (estimated based on acetylation)
Purity: ≥99% (see HPLC and COA documentation)
Concentration: 10 mg
Molar mass: ~433.39 g/mol
Half-life: Estimated slightly longer than MK-2866 (24–36 hours)
⚠ Important Note: This product is supplied strictly for laboratory research use only. It is not approved for human consumption or therapeutic use. Not intended to diagnose, treat, cure, or prevent any disease.
Reviews
There are no reviews yet.