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GHRP-2 (pralmorelin) is a synthetic hexapeptide — a chain of six amino acids with the sequence D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2. It has a molecular formula of C45H55N9O6, a molecular weight of 817.99 g/mol, and a CAS number of 158861-67-7. The peptide incorporates two unnatural D-amino acids and the non-standard residue D-2-naphthylalanine, giving it a structure distinct from naturally occurring peptides. GHRP-2 was developed in the early 1990s and is classified as a growth hormone secretagogue and ghrelin receptor agonist. It is supplied as a white to off-white lyophilized powder that dissolves readily in water. This product is for research purposes only.
ℹ️ Note: 1 kit includes 10 vials
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GHRP-2, also known by its INN name pralmorelin, is a synthetic hexapeptide — a chain of six amino acids. Its sequence is D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2, where “D-2-Nal” refers to D-2-naphthylalanine, an unnatural amino acid. The molecular formula is C45H55N9O6, and its molecular weight is 817.99 g/mol. It carries a CAS registry number of 158861-67-7. The peptide has an amidated C-terminus (the -NH2 at the end), which distinguishes it from peptides that end in a free carboxyl group.
GHRP-2 was developed in the early 1990s as part of a series of synthetic growth hormone releasing peptides. It was among the first compounds classified as a growth hormone secretagogue receptor (GHS-R) ligand, a receptor later found to be the same one associated with ghrelin, the stomach-derived hormone discovered in 1999. GHRP-2 is classified as a growth hormone secretagogue (GHS) and a ghrelin receptor agonist. It is supplied as a white to off-white lyophilized powder that dissolves readily in water.
This product is strictly for research purposes only. Not approved for human or animal use.
PubChem Reference: View compound profile on NIH PubChem
Formula: C45H55N9O6
Weight: 817.99 g/mol
CAS: 158861-67-7
Sequence: D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2
Form: White to off-white lyophilized powder
Solubility: Readily dissolves in water
Stability: Stable when lyophilized
Storage: Keep refrigerated 36‑46 °F (2‑8 °C)
| Weight | 5mg, 10mg |
|---|
Dr. Connor J. Reeves –
One of the cleaner GHRP-2 samples we’ve sourced. 99%+ purity confirmed in-house. Ideal for preclinical studies on ghrelin receptor agonism. Fast shipping and well-packaged lyophilized powder
Dr. Rafael S. Mendoza –
Good solid peptide for growth hormone secretagogue research. No unexpected degradation peaks on HPLC. CAS 158861-67-7 confirmed. Minor note the vial was slightly overfilled, but that’s not a complaint, just an observation. Quality is excellent
Prof. Layla T. Ibrahim –
Very consistent quality across multiple vials. The peptide reconstituted easily and remained stable in solution for 48 hours. Would give 5 stars if shipping tracking was more detailed, but the product itself is top-tier.
Dr. Marcus A. Vellinga –
Reliable and potent GHRP-2. Our growth hormone secretion assays showed excellent dose-dependent responses. CAS 158861-67-7 verified by mass spec. Clean peptide with no detectable impurities