Ibutamoren (MK-677) Testing
MW: 528.66 g/mol
Orally active non-peptide GH secretagogue / ghrelin agonist.
What we test on Ibutamoren (MK-677)
Small molecule — HPLC-UV and LC-MS for related substances.
Standard GH Secretagogues Panel
- ✓RP-HPLC purity
- ✓ESI-MS identity
- ✓Amino acid analysis
- ✓Residual solvents (GC-MS)
Common impurities in this category
Sequence truncation, methionine oxidation, racemization at D-amino-acid positions, deamidation.
Related GH Secretagogues peptides
CJC-1295 (DAC)
3647.28 g/mol
GHRH analog with Drug Affinity Complex for extended half-life (~8 days).
CJC-1295 (no DAC) / Modified GRF 1-29
3367.93 g/mol
GHRH analog without DAC, shorter half-life than CJC-1295 with DAC.
GHRP-2
817.97 g/mol
Synthetic hexapeptide stimulator of GH release.
GHRP-6
872.97 g/mol
Hexapeptide stimulating GH secretion via the ghrelin receptor.
Hexarelin
887.04 g/mol
Potent hexapeptide GH secretagogue; also studied for cardiac effects.
Ipamorelin
711.86 g/mol
Selective pentapeptide GHRP. Minimal cortisol/prolactin release.