Introduction to MK-677 Raw Material
MK-677, also referred to in the research community as Ibutamoren, is a non-peptide small molecule under laboratory investigation for its interaction with the ghrelin receptor. Its action as a growth hormone secretagogue has made it a compound of interest in endocrinology and metabolic studies conducted with animal models and in vitro systems. For laboratories sourcing MK-677 raw material for sale, the availability of a well-characterized substance with documented purity is critical to producing reproducible experimental data.
This compound is not a dietary ingredient, a pharmaceutical product, or a substance formulated for any in‑human application. It is supplied exclusively as a research chemical for use in controlled laboratory environments. All handling must be carried out by qualified personnel adhering to institutional safety protocols. The material is not licensed for diagnostic, therapeutic, or veterinary purposes, and no claims of clinical relevance are attached to its distribution.
Chemical and Structural Profile
Core Molecular Data
The chemical identity of MK-677 is rooted in a spiroindoline sulfonamide backbone, which distinguishes it from peptide-based ghrelin mimetics. Key structural and physicochemical descriptors are as follows:
- Molecular formula: C27H36N4O5S
- Molecular weight: 528.66 g/mol
- CAS Registry Number: 159752-10-0
- Purity (by HPLC): ≥98%
- Physical appearance: White to off-white crystalline powder
These values are consistent with reference data found in public chemistry resources such as PubChem and the CAS registry. The compound’s non-peptide nature contributes to its oral bioavailability profile in preclinical models, though bioavailability data are only relevant within the context of laboratory pharmacokinetic studies and are not indicative of any utility outside research settings.
Purity Criteria and Analytical Benchmarks
High-performance liquid chromatography (HPLC) is employed to confirm that the level of the target substance meets or exceeds the 98% threshold. Trace impurities, when present, are catalogued in the batch-specific Certificate of Analysis. The analytical workflow is designed to detect any synthesis by-products, residual solvents, or structural analogs that could confound receptor-binding assays or cellular response measurements. Researchers are encouraged to use the supplied COA to verify that the purity profile matches their experimental requirements before initiating work with the raw material.
Applications in Scientific Research
Endocrinology and Growth Hormone Secretagogue Studies
In laboratory endocrinology, MK-677 is applied to study the amplitude and pulsatility of growth hormone release in cultured pituitary cells and in animal models. By activating the ghrelin receptor (GHS-R1a), the compound triggers a signaling cascade that can be monitored through downstream endpoints such as intracellular calcium mobilization and gene transcription analysis. These experiments contribute to fundamental understanding of the ghrelin–GH–IGF-1 axis without inferring any translational intent.
Neuroendocrine Ghrelin Receptor Signaling
The selectivity of Ibutamoren for the ghrelin receptor makes it a valuable tool in neuroendocrine investigations. Researchers use the compound in receptor-binding assays, functional activity screens, and neuronal signaling pathway mapping. Such work often involves radioligand displacement or BRET-based biosensor readouts to quantify receptor agonism. The resulting data illuminate how ghrelin receptor activation modulates neural circuits involved in appetite and energy homeostasis in rodent and non-human primate models.
Metabolic Research and Energy Balance
Preclinical metabolic studies utilize MK-677 to explore changes in body composition, substrate oxidation, and tissue-specific nutrient partitioning. In controlled feeding paradigms with research animals, administration of the compound has been documented to alter lean mass accretion and fat utilization. These findings remain confined to laboratory animals and are interpreted solely as observations of metabolic plasticity, with no extrapolation to human physiology.
Bone and Muscle Biology
In vitro and in vivo experiments have employed MK-677 to examine markers of osteoblast activity and myoblast proliferation. Research protocols typically measure alkaline phosphatase secretion, calcium deposition in cell cultures, or biomechanical properties of skeletal tissue in animal models. The compound’s influence on anabolic signaling pathways in these systems is investigated under rigorous laboratory control, contributing to basic science knowledge of tissue growth regulatory networks.
Quality Assurance and Compliance
Manufacturing Under cGMP Principles
Every batch of MK-677 raw material is synthesized in facilities that follow current Good Manufacturing Practice (cGMP) guidelines tailored for research-grade chemical production. Process controls, raw material traceability, and equipment calibration logs are maintained to support batch-to-batch consistency. While these standards mirror pharmaceutical-grade stringency, they are applied specifically to ensure reliability for laboratory investigations and do not imply suitability for human or animal therapeutic use.
Analytical Verification
Upon synthesis, each lot undergoes orthogonal analytical testing:
- HPLC analysis quantifies the target compound and detects related substances.
- Mass spectrometry (MS) confirms molecular identity by comparing the observed mass-to-charge ratio with the theoretical value.
- Additional methods, such as NMR or Karl Fischer titration, may be utilized if required by the project scope.
A Certificate of Analysis (COA) compiling these results accompanies every shipment. The COA serves as an auditable record for laboratory managers and institutional review boards, documenting that the product meets the declared specifications at the time of release. Moreover, stability-indicating tests show that when stored as recommended, the material retains its purity for up to 24 months.
Packaging and Shipping Information
Volume Options
Researchers can procure MK-677 raw material in several pre-weighed quantities to match project scale and budget. Standard splits include 1 gram, 10 grams, 100 grams, and 1 kilogram. For projects requiring intermediate amounts or custom aliquots, the supply team can usually accommodate specific requests without compromising container integrity.
Container and Environmental Protection
The substance is sensitive to moisture and prolonged light exposure. To preserve structural fidelity, it is dispensed into airtight, light-resistant containers—typically amber glass vials or vacuum-sealed foil pouches. Desiccant inserts are added when the ambient humidity profile makes it necessary. For temperature-sensitive transit, cold-chain packaging with validated gel packs or dry ice is used, especially for intercontinental routes passing through climates with elevated ambient temperatures.
Logistics and Discretion
Shipments are organized through licensed carriers experienced in chemical freight. Outer packaging displays only legally required identifiers and is free from overt labeling that would draw unnecessary attention. All consignments comply with international transport regulations for non-hazardous research chemicals, and the documentation accurately describes the contents as “laboratory research material, not for human or veterinary use.” Customers receive tracking details upon dispatch, enabling them to coordinate receipt with their institution’s receiving department.
Frequently Asked Questions
Q: What research applications does MK-677 have?
A: The compound is principally utilized in studies investigating growth hormone release mechanisms and ghrelin receptor pharmacology. It serves as a chemical probe in endocrinology, neuroendocrinology, metabolism, and tissue biology research, always within laboratory models.
Q: What is the minimum purity?
A: Every batch is verified to have a purity of at least 98% by HPLC. The exact measured purity and impurity profile are shown on the lot-specific Certificate of Analysis.
Q: Is the product stable over time?
A: When stored according to recommendations (‑20°C in an airtight, light-protected container), solid-form MK-677 remains stable for up to 24 months from the date of manufacture. Avoiding freeze-thaw cycles and repeated exposure to atmospheric moisture further supports longevity.
Q: Can I request a COA?
A: Yes. A Certificate of Analysis is issued for each batch and can be supplied at the time of order confirmation. If a duplicate is needed later, the team can retrieve the documentation by referencing the batch number printed on the product label.
Conclusion
The MK-677 raw material made available through this channel is produced, analyzed, and shipped with the rigor expected by academic and industrial research laboratories. Its high purity, well-documented chemical identity, and adherence to cGMP synthesis protocols make it a consistent building block for investigative studies on ghrelin receptor pathways and associated biological questions.
Pricing for bulk quantities and ancillary documentation—such as stability data, residual solvent statements, or additional analytical test reports—can be requested through direct consultation with the supply team. To discuss your specific research requirements or to receive a current quotation for MK-677 raw material for sale, please reach out with a brief description of your intended laboratory application. A knowledgeable representative will respond with product availability and any relevant technical details to support your project planning.
Research use only notice: This product is solely intended for laboratory research and analytical testing. It is not a pharmaceutical, drug, supplement, or veterinary product and has not been evaluated by any regulatory authority for safety or effectiveness in humans or animals. Use is permitted exclusively under the supervision of qualified individuals in appropriate containment conditions, with full compliance to local, national, and international regulations governing research chemicals.
For research use only. Not for human or veterinary use.
