Growth
GHRP-2 Pralmorelin · GHS-R1a Agonist
Growth
GHRP-2 research overview
- CAS Number
- 158861-67-7
- Molecular Formula
- C₄₅H₅₅N₉O₆
- HPLC Purity
- ≥99% (batch-verified)
- Form
- Lyophilised powder
- Storage
- 2–8°C, desiccated, protected from light
- Classification
- Research reagent - in vitro use only
GHRP-2 (pralmorelin) is a synthetic hexapeptide growth hormone secretagogue of the second generation. Like GHRP-6, it is an agonist of the ghrelin receptor (GHS-R1a), and it is used in preclinical research as a potent reference ligand for that receptor.
GHRP-2 was developed as a successor to GHRP-6. Its sequence, D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH₂, replaces the N-terminal histidine and D-tryptophan of GHRP-6 with D-alanine and D-2-naphthylalanine, an unnatural aromatic amino acid. The peptide contains three D-amino acids in total.
In cell-based research, GHRP-2 is used in GHS-R1a binding and calcium-mobilisation assays and in primary pituitary cell cultures, where growth hormone release into the medium is measured. It is frequently used with a GHRH analogue in studies of how the ghrelin-receptor and GHRH-receptor pathways interact in somatotroph models.
GHRP-2 is studied alongside the other ghrelin-receptor agonists in the catalogue, GHRP-6 and Ipamorelin. Velox Peptides supplies GHRP-2 at ≥99% HPLC-verified purity as a 10mg lyophilised research reagent. Not for human or veterinary consumption.
Summary paraphrased from the peer-reviewed preclinical literature. For in vitro research use only. For source citations, email support@veloxpeps.com.
GHRP-2 Research Hub
Technical data
Compound specifications
| Common name | GHRP-2 (Pralmorelin, Growth hormone-releasing peptide-2) |
|---|---|
| Full name | Growth hormone-releasing peptide-2 (pralmorelin) |
| CAS number | 158861-67-7 |
| Molecular formula | C₄₅H₅₅N₉O₆ |
| Molecular weight | 817.97 g/mol |
| Sequence | D-Ala-D-2-Nal-Ala-Trp-D-Phe-Lys-NH2 |
| HPLC purity | ≥99% (batch-verified) |
| Appearance | White to off-white lyophilised powder |
| Solubility | Bacteriostatic water, sterile saline |
| Storage (lyophilised) | 2–8°C, protected from light |
| Storage (reconstituted) | 2–8°C, up to 28 days |
| Supplied as | 10mg |
Purity & documentation
Batch testing and certificate of analysis
Every batch of GHRP-2 is third-party HPLC-tested prior to dispatch. Batch documentation is available on request.
Previous batch CoAs are archived in the CoA library. For batch-specific CoA requests prior to purchase, contact support@veloxpeps.com.
Delivery & payment
Buying GHRP-2 in the UK
GHRP-2 is sold by Velox Peptides (CRP Labs Ltd, UK company no. NI738125) and dispatched from the UK. Choose a vial size, pay on one page, and your order is dispatched the next working day.
- Delivery: Royal Mail Tracked 24 (1–2 working days, £5.99, free over £100) or Tracked 48 (2–3 working days, £3.80). See shipping.
- Payment: Pay by Bank through FCA-authorised open banking, or bank transfer. No card details needed.
- Testing: See the batch testing details above and past reports in the CoA library.
- Research use only: Supplied as a research reagent for in vitro use. Not for human or veterinary consumption. See our Research Use Policy.
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Compliance notice
For in vitro research use only. GHRP-2 is supplied solely as a research reagent for qualified professionals conducting in vitro or animal-model studies. It is not a medicinal product within the meaning of the Human Medicines Regulations 2012. It has not been evaluated by the MHRA or FDA. It is not intended for human or veterinary consumption, diagnosis, treatment, cure, or prevention of any condition. Any use outside lawful scientific research is outside the scope of sale.
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