Molecular profile
- Molecular Formula
- C 27 H 36 N 4 O 5 S
- Molecular Weight
- 528.7 g/mol
- PubChem CID
- 9939050
- CAS Number
- 159634-47-6
- Synonyms
- MK-0677, Oratrope, Ibutamoren, L-163,191
Non-peptide compound reference
MK-677
Also known as Ibutamoren
MK-677, alternatively known as Ibutamoren or Oratrope, is an orally administered compound that acts as a specific agonist for the ghrelin receptor. Scientific investigations have indicated that Ibutamoren facilitates the secretion of growth hormone (GH) and insulin-like growth factor 1 (IGF-1) without influencing cortisol levels.…
Dosing literacy
Dosing & scaling, explained
No mass-based amount example with adequate calculation context is available for this compound. This is educational source context—not a protocol or recommendation.
Calculation context
No source-supported amount ladder is shown
Enter a target amount only from your own reviewed source. The calculator can convert it into concentration, volume and device markings, but it will not infer an amount from product availability or another compound.
Only mcg or mg amounts are retained. The calculator derives mL, syringe units or pen clicks from the current vial strength, water volume and device.
Schedule literacy
No independently verified schedule
Evidence context
No clinical amount or schedule is inferred from this material. Source verification is pending, and every displayed amount remains educational context rather than guidance.
Research best practices
Storage, handling and interpretation
Product identity
Verify the exact compound, formulation and amount against the product label or certificate before calculation.
Storage & handling
Follow the product label, certificate and validated laboratory SOP; no universal storage assumption is applied here.
Prepared solutions
Label concentration and preparation date, use sterile technique where applicable, and follow a validated stability protocol.
Research orientation
What researchers are exploring
These themes organize the educational information currently available. Individual claims remain under source review and are not treatment claims.
- 01
MK-677 and Its Classification
Understanding MK-677's place among growth hormone secretagogues
- 02
Advantages of MK-677 Over SARMs
Benefits of MK-677 compared to selective androgen receptor modulators
- 03
MK-677 and Somatopause
Effects on age-related GH decline
- 04
MK-677 and Body Composition
Impact on lean mass, fat metabolism, and bone density
- 05
MK-677 and Bone Density
Effects on bone remodeling and fracture resistance
- 06
MK-677 and Neurological Function
Potential applications in Alzheimer's disease prevention
Evidence map
What is known—and what still needs verification
Available context is organized without assigning unsupported study models or evidence grades.
- Source review pending
MK-677 and Its Classification
Understanding MK-677's place among growth hormone secretagogues
- Source review pending
Advantages of MK-677 Over SARMs
Benefits of MK-677 compared to selective androgen receptor modulators
Technical reference
Identity, limitations and unknowns
Important limitations
- Individual claims and source links have not yet completed editorial verification.
- Evidence level, applicable study model, formulation, route and population remain unassigned.
Source review
1 links awaiting verification
- Source link · pmc.ncbi.nlm.nih.govVerification pending · Source review pending