GHRP-2 10mg
£17.99 per vial · Growth hormone · Research use only
GHRP-2 10mg research peptide — growth hormone releasing peptide-2, a synthetic hexapeptide ghrelin-receptor agonist (CAS 158861-67-7), supplied lyophilised for in-vitro laboratory research. HPLC purity and LC-MS identity verified per batch, with the COA available on request. UK dispatch.
GHRP-2 in research
Only half of this hexapeptide is built from residues that occur in proteins. GHRP-2 runs D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys with a C-terminal amide, so three of its six positions carry either an inverted stereocentre or a synthetic side chain — 2-naphthylalanine in particular has no biological counterpart at all. The composition is deliberate: D-configured and unnatural residues are poor substrates for the proteases that would degrade an all-L sequence, and they are also why the synthesis needs specialist building blocks rather than a standard amino-acid set. The compound is a ghrelin-receptor (GHS-R1a) agonist and is used as such in receptor-signalling assays. CAS 158861-67-7, C45H55N9O6, 817.0 g/mol; the vial holds 10mg of lyophilised solid.
Specification
| Compound | GHRP-2 |
|---|---|
| CAS number | 158861-67-7 |
| Molecular formula | C45H55N9O6 |
| Molecular weight | 817.0 g/mol |
| Sequence | D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂ |
| Vial size | 10mg per vial |
| Physical form | Lyophilised powder |
| Research class | Growth hormone |
| Purity method | RP-HPLC |
| Identity method | LC-MS |
| Documentation | Certificate of analysis available on request |
| Intended use | In-vitro laboratory research only |
Frequently asked questions
Why does the sequence contain D-amino acids?
A D-configured residue inverts the stereochemistry at the alpha-carbon, which both fixes the geometry the receptor sees and makes the chain a poor substrate for proteases that recognise only L-residues. Three of the six positions here are affected; they belong to the sequence as designed and are listed on the certificate, not counted as impurities.
What is 2-Nal?
3-(2-naphthyl)alanine — an alanine backbone carrying a naphthalene ring where the usual side chain would be. It is a synthetic residue, not one of the twenty proteinogenic amino acids, and along with the tryptophan at position four it accounts for most of the compound's ultraviolet absorbance.
Does the material need protection from light?
Indole and naphthalene side chains are both photosensitive, and prolonged light exposure degrades peptides that carry them. Storage in the dark is standard for sequences of this kind, and the lot documentation records the condition that applies.
Documentation & batch verification
GHRP-2 is analysed per batch: RP-HPLC for purity and LC-MS for identity, with the certificate of analysis available on request. Each released lot number is checkable on our batch verification page, and our documentation standards set out exactly what is reviewed before a product is listed.
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Research use only. Not for human or animal consumption.