Ipamorelin
A selective ghrelin-receptor agonist studied for clean growth-hormone secretagogue activity.
01At a Glance
| Compound | Ipamorelin |
| Also known as | NNC 26-0161 |
| CAS Number | 170851-70-4 |
| Molecular Weight | 711.85 g/mol |
| Sequence / Form | Aib-His-D-2-Nal-D-Phe-Lys-NH2 |
| Classification | Endocrine research compound |
| Appearance | Lyophilized powder |
| Purity | ≥99% (HPLC · MS-verified) |
| Storage | 2–8°C; -20°C for long-term |
| Intended Use | Research Use Only |
02Mechanism of Action
Ipamorelin is a synthetic pentapeptide and selective agonist of the ghrelin receptor (GHS-R1a). In research models it stimulates growth-hormone release from the pituitary with notable selectivity — published work emphasizes minimal effect on prolactin, cortisol, and ACTH compared with earlier secretagogues.
This selectivity makes it a frequently used reference tool in GH-secretagogue specificity research.
03Research Applications
- 01GHS-R1a (ghrelin receptor) agonism assays
- 02Selective growth-hormone-secretagogue research
- 03Pituitary hormone-selectivity comparison models
- 04GH-axis endocrine studies
04Purity & Verification
Every Ethos Bio lot of Ipamorelin is analyzed by reverse-phase HPLC and independently confirmed by mass spectrometry through our third-party testing partner, Janoshik Analytical. A signed Certificate of Analysis documenting identity and ≥99% purity is provided for every lot.
View the Ipamorelin Certificate of Analysis
Independent third-party HPLC & mass-spec verification. The COA shipped with your order reflects your specific lot.
05Frequently Asked Questions
What makes Ipamorelin selective?
In research models Ipamorelin stimulates growth-hormone release via the ghrelin receptor with minimal impact on prolactin, cortisol, and ACTH, making it a selective secretagogue tool. It is sold for research use only.
What receptor does Ipamorelin target?
Ipamorelin is an agonist of the growth-hormone secretagogue receptor (GHS-R1a), also known as the ghrelin receptor.
What is Ipamorelin's molecular weight?
Ipamorelin has a molecular weight of approximately 711.85 g/mol and CAS number 170851-70-4.