MK-677

Scientific Data

CAS Number

159752-10-0

Molecular Formula

C₂₇H₃₆N₄O₅S

Molecular Weight

528.66 g/mol

Aliases

Ibutamoren, Ibutamoren Mesylate, L-163,191, Nutrobal

Category

Growth Hormone Secretagogue

Description

MK-677 is a potent, orally active, non-peptide ghrelin receptor agonist and growth hormone secretagogue. Unlike peptide-based secretagogues, it is a small molecule compound that mimics the action of ghrelin at the pituitary and hypothalamus. Research has focused on its role in sustained growth hormone and IGF-1 secretion, sleep quality, and nitrogen balance. It is among the most widely researched growth hormone secretagogues due to its oral bioavailability. It is supplied in powder form for research purposes.