Ostarine-O-Acetate (OTR-AC) – Solution, 750mg (25mg/mL)

Ostarine-O-Acetate (OTR-AC) – Solution, 750mg (25mg/mL)

This premium, laboratory-grade research compound delivers ultra-pure Ostarine-O-Acetate (OTR-AC) solution at 25mg/mL concentration, representing the highest standard for modern scientific investigations into esterified selective androgen receptor modulation and enhanced anabolic signaling mechanisms in muscle and bone. The ready-to-use solution format eliminates preparation time and ensures precise dosing accuracy for in vivo animal studies, eliminating solubility variability and providing investigators with a validated vehicle system ideal for analytical testing, pharmacokinetic modeling, and in vivo preclinical research applications where precise OTR-AC administration is critical for studying enhanced muscle growth, bone density enhancement, and prolonged tissue-selective androgenic effects with superior bioavailability compared to parent Ostarine.

All shipments to the 50 United States are fulfilled directly from primary U.S. production facilities, ensuring 2-5 business day delivery nationwide. International orders to the United Kingdom and continental Europe are processed through our dedicated United Kingdom shipping hub, which streamlines customs clearance and reduces transit times across all European countries. This dual-hub logistics infrastructure guarantees seamless, compliant delivery while maintaining chemical integrity throughout transit.

• Public third-party lab reports with unique lot-coding ensure absolute transparency for every batch sold

• Formulation contains zero flow agents, excipients, or adulterants—pure OTR-AC solution only

• Strategic over-fill compensates for solution adhesion loss, guaranteeing minimum 30mL (750mg) recoverable volume

• Amber glass bottle features UV-resistant construction and tamper-proof seal for transit safety

Technical Specifications & Chemical Profile

Research Applications & Storage Protocols

Esterified SARM Prodrug & Enhanced Anabolic Profiling

OTR-AC (Ostarine-O-Acetate, also known as MK-29 or Ostarinyl Acetate) functions as an esterified variant of the selective androgen receptor modulator (SARM) Ostarine (MK-2866), representing a chemically modified form featuring an acetate ester designed to improve pharmacokinetics. The compound is the acetate ester prodrug version of Ostarine that gradually releases the active MK-2866 after administration, functioning through prodrug mechanism. 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, demonstrating superior pharmacokinetic properties compared to parent Ostarine. Ostarine O-Acetate (OTR-AC) is a potent SARM that has also shown cardiovascular and antioxidant properties, adding therapeutic benefits beyond those studied for Ostarine. It is an upgraded version of Ostarine, a SARM, and OTR-AC is more potent than Ostarine and has shown more effective results, demonstrating enhanced efficacy compared to parent compound. OTR-AC enhances the effects of Ostarine greatly and prolongs its half-life, demonstrating significant pharmacokinetic enhancement. This version has improved bioavailability, and it remains active in the system for a longer period than Ostarine, confirming superior systemic persistence. OTR-AC works similarly to Ostarine, but its effects on the body are 10 times better, i.e., more muscle growth and fat reduction, demonstrating dramatically enhanced potency. Plus, it shows cardiovascular and antioxidant protection which, in the case of Ostarine, has not been studied, adding unique therapeutic benefits. Ostarine is a SARM that offers muscle-building effects with a short half-life of 24 hours; OTR-AC, on the other hand, is a more potent and advanced version of Ostarine, offering greater muscle growth, fat loss, and cardiovascular and antioxidant benefits, with a longer half-life of approximately 36–48 hours and stays in the system longer, demonstrating superior pharmacokinetic profile. Both SARMs are effective, with OTR-AC standing out for their enhanced bioavailability and longer-lasting impact, confirming its superior research utility. This esterified prodrug mechanism positions OTR-AC solution as a critical tool compound for investigating enhanced muscle growth research, fat loss mechanisms, improved bone health models, faster recovery pathways, performance enhancement studies, muscle preservation during cutting cycles, cardiovascular effects, antioxidant effects, and prolonged tissue-selective androgen receptor signaling in preclinical models, offering potential therapeutic insights superior to parent Ostarine.

Handling & Storage Guidelines

• Long-Term Storage: Store at 20°C (room temperature) for up to 3 years; keep out of direct sunlight. Tamper-proof seal ensures secure delivery. Handle at room temperature; avoid excessive heat and moisture; do not recommend long-term storage for solutions—use promptly after opening

• Solubility: Pre-dissolved formulation ready for direct use; Polyglycols: soluble; solubility varies by solvent; prepare fresh solutions immediately before use; aqueous solutions have limited solubility; shake/agitate bottle before each administration for consistency

• Appearance: Clear liquid solution; 30mL volume containing 750mg total OTR-AC at 25mg/mL concentration; <5% concentration variance for consistency

Global Logistics & Order Fulfillment

We proudly support scientific advancement across all 50 U.S. states and throughout Europe. Customers can seamlessly toggle their preferred currency between USD and EUR using the currency switcher located on the left-hand side of our website. All shipments are securely packaged to withstand international transit without compromising structural or chemical stability.

Laboratory Use Only Disclaimer

This material is sold strictly for laboratory research and development use only. It is not approved for human consumption, nor for medical, veterinary, or household applications. All purchases are governed by our standard Terms & Conditions. Please review them carefully before placing your order.