Liquid MK-777 (Acetamoren) 20 mg/mL

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Ghrelin receptor agonistA non-peptide growth hormone secretagogue, described as a structural analog of MK-677. 99.12% HPLC purityIndependently tested by an accredited US third-party lab. View the current COA. Research use onlySupplied exclusively for laboratory investigation and development. Product terminology MK-777 naming and MK-677 distinction MK-777, MK 777, MK777, and MK-777 Acetamoren are naming and search variants used for this product listing. MK-777 is distinct from MK-677 (Ibutamoren); the identifiers are not interchangeable. Technical data Product specifications Specifications Lab Reports Storage & Handling Liquid MK-777 (Acetamoren) — 20 mg/mL Compound Class Growth Hormone Secretagogue · Ghrelin Receptor (GHS-R1a) Agonist · Non-steroidal Concentration 20 mg/mL Composition USP-grade PEG-400 and ethanol base, MK-777 (≥99% purity) CAS Number 950841-87-9Copy Chemical Formula C28H35FN4O5SCopy Molar Mass 558.68 g/mol Synonyms MK-777, Acetamoren, MK777 Volume 30 mL per bottle (600 mg total) Verified Purity Batch-tested to 99.12% (HPLC) For laboratory research use only. Not for human or animal consumption. View certificates of analysis Independently verified This compound 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. MK-777 (Acetamoren)99.12% pure Most recent batch certificate of analysis for MK-777 (Acetamoren), issued by MZ Biolabs (Tucson, AZ). Tap to view full size. See all certificates of analysis Storage & handling This bottle is built to preserve compound integrity throughout your research timeline. Storage: Keep in a cool, dry place away from direct sunlight to maximize shelf life. UV-resistant glass bottle with fixed glass dropper to minimize degradation and avoid plasticizer (BPA) leaching. Tamper-proof seal to ensure integrity in transit. Graduated 1 mL glass pipette included for precise measurement. Evaporation-resistant formulation and packaging for stable storage. Sourcing & quality Why source MK-777 from Sports Technology Labs 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 research androgen-receptor compounds 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. 3). Third-party tested & certified Verified by MZ Biolabs (Tucson, AZ), an accredited US laboratory, via HPLC and mass spectrometry. USP-grade PEG-400 and ethanol base Suspended in a dual-solvent carrier system selected for this compound and bottled in America. Glass bottle, fixed glass dropper Prevents BPA leaching and avoids contamination from external tools. 60-day money-back guarantee Transparent business, standard payment methods, no misrepresentation. Research context What is MK-777? MK-777, also known as Acetamoren, is a synthetic non-peptide growth hormone secretagogue and ghrelin receptor (GHS-R1a) agonist. Mechanistically, it binds and activates the GHS-R1a receptor — the same receptor targeted by the endogenous peptide ghrelin and by the related compound MK-677 (ibutamoren), of which it is described as a structural analog. It is not a SARM. MK-777 is a comparatively new research chemical, and published characterization data remain limited. It is formulated here in a PEG-400 and ethanol solvent system selected to support solubility and solution consistency. MK-777 is an experimental research chemical, 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. Regulatory & compliance status Important regulatory information Not approved for human use MK-777 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 As a growth hormone secretagogue and ghrelin receptor agonist, MK-777 falls under the World Anti-Doping Agency’s S2 category (Peptide Hormones, Growth Factors, Related Substances and Mimetics), prohibited in- and out-of-competition (ref. 4). Legal status for research In the United States, MK-777 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. Citations Scientific references Patchett AA, et al. Design and biological activities of L-163,191 (MK-0677): a potent, orally active growth hormone secretagogue. Proc Natl Acad Sci USA. 1995;92(15):7001–7005. National Center for Biotechnology Information. PubChem Compound Summary for Acetamoren / MK-777 (CAS 950841-87-9): molecular formula, molecular weight, and classification. PubChem, National Library of Medicine. Van Wagoner RM, et al. Chemical composition and labeling of substances marketed as SARMs and sold via the internet. JAMA. 2017;318(20):2004–2010. WADA Prohibited List (2025), Section S2: Peptide Hormones, Growth Factors, Related Substances and Mimetics. WADA.org. 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. {“@context”:”https://schema.org”,”@type”:”ChemicalSubstance”,”name”:”MK-777 (Acetamoren)”,”alternateName”:[“MK-777″,”Acetamoren”,”MK777″],”identifier”:[{“@type”:”PropertyValue”,”propertyID”:”CAS”,”value”:”950841-87-9″}],”molecularFormula”:”C28H35FN4O5S”,”molecularWeight”:”558.68 g/mol”,”description”:”Liquid MK-777 (Acetamoren), 20 mg/mL, a non-peptide growth hormone secretagogue and ghrelin receptor (GHS-R1a) agonist supplied for laboratory research use only. Third-party tested to 99.12% purity.”,”hasBioChemEntityPart”:”Growth Hormone Secretagogue; Ghrelin Receptor (GHS-R1a) Agonist”} (function(){ var root=document.currentScript&&document.currentScript.closest(‘[data-stl-spec]’); if(!root){var all=document.querySelectorAll(‘[data-stl-spec]’);root=all[all.length-1];} if(!root||root.dataset.stlInit)return;root.dataset.stlInit=’1′; root.classList.remove(‘stl-pdp–nojs’); var tabs=[].slice.call(root.querySelectorAll(‘[role=”tab”]’)); var panels=tabs.map(function(t){return root.querySelector(‘#’+t.getAttribute(‘aria-controls’));}); function select(i){tabs.forEach(function(t,j){var on=j===i;t.setAttribute(‘aria-selected’,on?’true’:’false’);t.tabIndex=on?0:-1;if(panels[j])panels[j].hidden=!on;});} tabs.forEach(function(t,i){ t.addEventListener(‘click’,function(){select(i);}); t.addEventListener(‘keydown’,function(e){var n; if(e.key===’ArrowRight’||e.key===’ArrowDown’)n=(i+1)%tabs.length; else if(e.key===’ArrowLeft’||e.key===’ArrowUp’)n=(i-1+tabs.length)%tabs.length; else if(e.key===’Home’)n=0;else if(e.key===’End’)n=tabs.length-1;else return; e.preventDefault();select(n);tabs[n].focus();}); }); root.querySelectorAll(‘[data-stl-copy]’).forEach(function(btn){ btn.addEventListener(‘click’,function(){var v=btn.getAttribute(‘data-stl-copy’); var done=function(){btn.dataset.copied=’1′;var o=btn.textContent;btn.textContent=’Copied’;setTimeout(function(){btn.dataset.copied=”;btn.textContent=o;},1400);}; if(navigator.clipboard&&navigator.clipboard.writeText){navigator.clipboard.writeText(v).then(done).catch(done);} else{var ta=document.createElement(‘textarea’);ta.value=v;document.body.appendChild(ta);ta.select();try{document.execCommand(‘copy’);}catch(e){}document.body.removeChild(ta);done();} }); }); })(); (function(){var s=document.querySelectorAll(‘[data-stl-spec]’);var el=s[s.length-1];if(el&&!el.dataset.stlInit)el.classList.add(‘stl-pdp–nojs’);})(); MK-777 FAQs Why does this version use PEG-400 and Ethanol? MK-777’s solubility profile requires a carrier system that maintains stability and uniformity. PEG-400 combined with Ethanol improves dispersion and solution consistency compared to single-carrier systems. Is this different from your standard liquid base? Yes. This formulation uses a dual-solvent system specifically selected for MK-777. It differs from other STL liquid formulations based on compound chemistry requirements. Is the concentration verified? Yes. Each lot is prepared to a standardized concentration and supported by raw material purity verification and analytical testing.