- HPLC purity ≥99%, with a COA for each lot on request
- Certificate of analysis tied to your lot number
- Tracked EU delivery, dispatched the next working day
GHRP-2
Pralmorelin — synthetic hexapeptide agonist of GHS-R1a
In stock2 formats availableCAS 158861-67-7
Ask about this listing or request its COA- FormLyophilized powder, sealed glass vial
- Mol. weight817.97 g/mol
- Research areasGHS-R1a pharmacology, secretagogue potency ranking, neuroendocrine signalling
For laboratory research use only. Sold exclusively for in-vitro laboratory research by qualified professionals. Not for human or veterinary use, and not a medicine, food, cosmetic or dietary supplement. Terms and Conditions
Overview
Key facts
GHRP-2 (pralmorelin) is a synthetic six-residue agonist of the growth hormone secretagogue receptor, GHS-R1a.
- CAS number
- 158861-67-7
- Molecular formula
- C45H55N9O6
- Molecular weight
- 817.97 g/mol
- Amino acid sequence
- D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2
- Purity
- ≥99% by HPLC; lot-matched COA available
- Form
- Lyophilized powder, sealed glass vial
- Storage
- −20 °C, sealed and protected from light and moisture
- Available sizes
- 5 mg · 10 mg
For research use only. Not for human consumption.
GHRP-2 (pralmorelin) is a synthetic six-residue agonist of the growth hormone secretagogue receptor, GHS-R1a. Its sequence, D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2, derives from the enkephalin-based GHRP-6 template: a D-2-naphthylalanine in position 2 raised potency considerably, and an N-terminal D-alanine protects against aminopeptidases.
GHRP-2 was among the compounds that showed the secretagogue receptor to be a target separate from the GHRH receptor — years before ghrelin was recognised as its natural ligand. That history makes it a handy reference agonist: labs use it to characterise GHS-R1a binding, to calibrate calcium-flux and inositol-phosphate assays, and to rank potency across the GHRP family together with ipamorelin, GHRP-6 and hexarelin.
What sets this listing apart
GHRP-2 – vial, 5/10 mg. Lyophilized powder, sealed glass vial. Other GHRP-2 listings differ in format, fill or combination partners; the specification and COA always refer to the listing you order.
Same compound, other listings
Specifications
Identity
- CAS number
- 158861-67-7
- Molecular formula
- C45H55N9O6
- Molecular weight
- 817.97 g/mol
- Amino acid sequence
- D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2
- Chain length
- 6 residues, C-terminal amide
- Peptide class
- Growth hormone releasing peptide (GHRP), GHS-R1a agonist
Supply & purity
- Form
- Lyophilized powder, sealed glass vial
- Purity
- ≥99% by HPLC; lot-matched COA available
- Available sizes
- 5 mg, 10 mg
Handling & storage
- Storage (lyophilized)
- −20 °C, sealed and protected from light and moisture
- Storage (reconstituted)
- 2–8 °C, used within the study window
Additional detail
- Also known as
- Pralmorelin, KP-102, GPA-748
- Research areas
- GHS-R1a pharmacology, secretagogue potency ranking, neuroendocrine signalling
Questions about GHRP-2
What is GHRP-2?
Also known as pralmorelin, it is a synthetic six-amino-acid peptide that activates GHS-R1a, the growth hormone secretagogue receptor. Researchers rely on it as a strong reference agonist in binding, calcium-signalling and comparative secretagogue experiments.
How does it stack up against GHRP-6?
Both hexapeptides act at GHS-R1a. GHRP-2's D-2-naphthylalanine at position 2 generally makes it the more potent per mole, while GHRP-6 is more closely tied to appetite effects in animal studies.
Does GHRP-2 ship with a Certificate of Analysis?
Yes. Every GHRP-2 lot goes to an independent lab for HPLC analysis of identity and ≥99% purity, and you may request the certificate that belongs to your lot. Before entering the vials into your inventory, compare the lot number printed on them with the one on the document.
Which sizes can be ordered?
Lyophilised vials of 5 mg and 10 mg. The smaller size suits assay development and brief in vitro series; the larger one brings down the price per milligram for longer comparisons across the secretagogue family.
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