Molecular Characteristics
Complete Specifications
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CAS Registry Number: 170851-70-4
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PubChem CID: Not available
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Peptide Classification: Synthetic pentapeptide (growth hormone–releasing peptide)
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Molecular Formula: C₃₈H₄₉N₉O₅
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Molecular Weight: ~711.85 Da
Structural Composition
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Amino Acid Sequence:
Aib-His-D-2-Nal-D-Phe-Lys-NH₂ -
Length: 5 amino acids
Physical Properties
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Appearance: White to off-white lyophilized powder
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Solubility: Water, bacteriostatic water, phosphate-buffered saline (PBS)
Structural & Stability Notes
Ipamorelin is a synthetic pentapeptide containing non-natural amino acid residues such as Aib (α-aminoisobutyric acid) and D-configured aromatic residues, which enhance resistance to enzymatic degradation compared to peptides composed solely of L-amino acids. These structural modifications contribute to improved stability under controlled research conditions. Its short chain length supports efficient aqueous solubility and practical laboratory handling. Lyophilized storage and protection from moisture, light exposure, and repeated freeze–thaw cycles help preserve peptide integrity and maintain analytical consistency during research applications.




