Ipamorelin

Specification

Mechanism of action

Ipamorelin is a synthetic pentapeptide agonist at the growth hormone secretagogue receptor (GHS-R). This receptor belongs to the G protein-coupled receptor family and is characterized in research through the ghrelin signalling pathway. Ligand binding at GHS-R activates intracellular second messenger cascades that measurably direct growth hormone release in somatotroph cell lines and primary culture models. Compared with broader GHRP analogues, Ipamorelin is often used in preclinical models because activation of the GHS-R pathway comes with a lower effect on the prolactin, ACTH and cortisol axes. The molecule therefore works as a defined reference ligand for selective receptor studies. Laboratories that buy Ipamorelin take the selective GHS-R agonist at 10 mg per vial.

Reconstitution and handling

The lyophilizate is reconstituted in the laboratory with a suitable sterile solvent. The solvent is added slowly along the vessel wall, and the preparation is mixed gently until the powder has dissolved completely. The resulting solution is processed promptly, since the peptide in dissolved form responds more readily to ambient conditions. Until use, the reagent is kept out of direct light. Volume and concentration figures are not part of this description. The performing laboratory sets those parameters in its own protocol.

In vitro research

In in vitro research, Ipamorelin serves as a reference ligand for competitive binding studies at recombinant or native GHS-R. In cAMP reporter assays and calcium imaging setups, receptor activation can be quantified in a concentration-dependent manner. Pituitary cell models use the peptide to follow GH release after GHS-R stimulation and to compare it with other secretagogues. For structure-activity work in the GHRP field, Ipamorelin supplies a compact pentapeptide reference with a clearly assigned receptor profile. Dilution series prepared from the lyophilizate support concentration-response curves across multiple replicates.

Quality and analytics

Each batch of Ipamorelin is tested by HPLC for purity, and the content is ≥99 %. An identity check also confirms the pentapeptide sequence and thus the assignment to the GHS-R agonist NNC 26-0161. Results are recorded for each batch. This analytical characterization gives a reliable basis for comparing measurement series and for the reproducibility of GHS-R assays in the laboratory.

Available amounts per vial: 5 mg, 10 mg. Box of 10 vials.