GROWTH HORMONE FAMILY
MK-677 Capsules
Non-peptide ghrelin mimetic (ibutamoren). 30-count oral tablet bottle. Studied in growth-hormone secretagogue literature.
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Certificate of Analysis
Third-party tested · ISO/IEC 17025 accredited
99.5%
purity
✓ Passed full QC panel
- Variant
- MK-677 Capsules · 30 ct (25 mg per tablet)
- Lot #
- AML-2026-0519
- Labeled
- 30 ct (25 mg per tablet)
- Tested
- 2026-04-20
Full QC panel
- Purity (HPLC)
- 99.5%
- Net Peptide Content
- Pass
- Identity (HPLC-MS)
- Confirmed
- Heavy Metals (ICP-MS)
- Not detected
- Sterility
- No growth
- Endotoxin (LAL)
- Within limits
Purity, lot and tested date are per-lot; remaining QC rows are representative — exact values on the CoA.
Compound Information
Chemical and structural properties
Chemical identity verified via NIH PubChem · biological targets characterized from the peer-reviewed literature.
Molecular profile
Structure
- CAS Number
- 159752-10-0
- Molecular Formula
- C27H36N4O5S
- Molecular Weight
- 528.7 g/mol
- Sequence
- (non-peptide small molecule)
- Type
- Research peptide
- PubChem
- CID 178024 ↗
Biological targets
Interactions
- Primary target
- Ghrelin receptor (GHS-R1a)
- Pathway
- GHS-R1a–GH / IGF-1 axis; orally active
- Mechanism
- Non-peptide ghrelin-mimetic growth-hormone secretagogue
- Research area
- GH / IGF-1 axis, body-composition research
Physical properties
Handling & Storage
- Appearance
- White crystalline powder (small molecule)
- Solubility
- Soluble in DMSO or ethanol; sparingly water-soluble
- Storage
- Room temp, dry, protect from light
- Country of origin
- USA
Sources & References
Peer-reviewed research
Indexed in NIH PubMed. Provided for research context; not a claim of clinical outcome.
THE JOURNAL OF CLINICAL ENDOCRINOLOGY AND METABOLISM
MK-677, an orally active growth hormone secretagogue, reverses diet-induced catabolism
1998 · PMID 9467534
Murphy MG et al.
View Source ↗YONSEI MEDICAL JOURNAL
Effect of the Orally Active Growth Hormone Secretagogue MK-677 on Somatic Growth in Rats
2018 · PMID 30450851
Lee J et al.
View Source ↗RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM
Characterization of growth hormone secretagogue small molecule ibutamoren (MK-0677) and its possible metabolites in thoroughbred horses for doping control
2022 · PMID 35716382
Philip M et al.
View Source ↗CLINICA CHIMICA ACTA; INTERNATIONAL JOURNAL OF CLINICAL CHEMISTRY
Knowing the minimal detectable dose can facilitate the interpretation of a hair test result: II. Case example with ibutamoren (MK-677), a growth hormone secretagogue
2026 · PMID 40882886
Kintz P et al.
View Source ↗DRUG TESTING AND ANALYSIS
Detection of the growth hormone secretagogue MK-0677 in equine hair following oral administration
2023 · PMID 36354265
Viljanto M et al.
View Source ↗
⚠ Important research notice
PRODUCTS ARE INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly prohibited by law. Products should only be handled by licensed, qualified professionals. Products sold are not a drug, food, or cosmetic and may not be misbranded, misused or mislabeled as a drug, food, or cosmetic.
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