Ipamorelin

Compound identity

Each row above is attributed to its source. Rows citing a database record are reference information about the molecule; rows marked catalog information describe this listing. Neither is a specification, an analytical result or a claim about any particular batch.

Research classification

Synthetic pentapeptide. Characterised in the published literature as a selective growth hormone secretagogue (Raun et al., European Journal of Endocrinology, 1998; PMID 9849822). That is a pharmacological classification drawn from the literature, not a statement about what any supplied material does. Not an approved medicine.

Chemical characteristics

• At roughly 712 g/mol, ipamorelin is markedly smaller than most peptides in this catalog, which makes it comparatively straightforward to characterise by mass spectrometry.
• The molecule incorporates non-standard residues rather than being built purely from the twenty proteinogenic amino acids, so it is not described by a simple one-letter sequence string in the way BPC-157 or MOTS-c are.
• Its small size and defined structure make it a convenient reference point when comparing chromatographic methods across peptides of different sizes.

Analytical methods

• Reversed-phase HPLC (RP-HPLC) is the method most commonly used to express the chromatographic purity of a synthetic peptide as a percentage of total peak area at a stated wavelength.
• Mass spectrometry (typically ESI-MS or MALDI-TOF) is used to confirm that the observed mass of the material is consistent with the expected mass of the intended sequence.
• Because purity figures are method-dependent, an analytical result is only interpretable alongside the method conditions and the batch it describes.

Both methods are covered in more detail in our guides to HPLC analysis of peptides and mass spectrometry for identity confirmation.

Stability and storage considerations

• Lyophilized peptides are generally supplied as a dry solid because the removal of water slows hydrolytic degradation pathways.
• Cold, dry, light-protected storage is the general handling expectation for lyophilized research peptides.
• Once a peptide is taken into solution, its stability profile changes and is influenced by solvent, pH, temperature and the number of freeze-thaw cycles.
• Storage and handling expectations for a specific batch should be taken from that batch's documentation rather than from general guidance.

See peptide stability and degradation for the chemistry behind these considerations.

Frequently asked questions

What is ipamorelin?

Ipamorelin is a synthetic peptide of five residues. In published pharmacology literature it is classified as a growth hormone secretagogue acting at the ghrelin receptor, GHS-R1a.

What is the molecular weight of ipamorelin?

Public chemical database records give a molecular formula of C38H49N9O5 and a molecular weight of approximately 711.9 g/mol.

Is ipamorelin available separately in the Peptide Tactics catalog?

The current catalog lists ipamorelin only as part of the combined CJC-1295 + ipamorelin vial. Contact us for availability questions.

Sources

• PubChem CID 9831659 — ipamorelin

Related compounds

Further reading

• What are peptides? — A peptide is a chain of amino acids joined by amide bonds.
• Peptide purity explained — A purity percentage on its own carries less information than it appears to.
• Lyophilized peptides explained — Almost every research peptide arrives as a lyophilized solid.