Gonadorelin is a synthetic decapeptide identical in sequence to endogenous gonadotropin-releasing hormone (GnRH), also known as luteinizing hormone-releasing hormone (LHRH). It is a foundational tool for research into the hypothalamic-pituitary-gonadal axis, studied for its capacity to stimulate release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) from pituitary cells. Puritide Research supplies Gonadorelin as a high-purity, research-use-only material for in vitro and animal-model work, backed by third-party-verified certificates of analysis.
Product Specifications
- Application
- Hypothalamic-pituitary-gonadal axis and GnRH receptor signaling research
- Appearance
- Solid, white lyophilized powder in a sealed glass vial
- Chemical Formula
- C55H75N17O13
- PubChem SID
- 638793
- CAS Number
- 33515-09-2
- Molecular Weight
- ~1182.29 g/mol
- Synonyms
- Gonadorelin, GnRH, LHRH, Luteinizing hormone-releasing hormone, Gonadoliberin, pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2
- Storage
- Store at ≤25°C, sealed, away from heat, light, and moisture. For extended storage, keep lyophilized and refrigerated or frozen.
What Is Gonadorelin?
Gonadorelin is a synthetic decapeptide with the sequence pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2, matching the structure of naturally occurring gonadotropin-releasing hormone. In physiology, GnRH is produced by neuroendocrine cells in the hypothalamus and released in a pulsatile pattern that governs pituitary gonadotropin secretion.
In research settings, Gonadorelin is used to study the GnRH receptor, the regulation of LH and FSH release, and the dynamics of the hypothalamic-pituitary-gonadal (HPG) axis. Its native sequence and short half-life make it a common reference agonist for investigating how pulsatile versus continuous receptor stimulation shapes downstream signaling.
Present understanding derives from in vitro assays, animal models, and biochemical studies. Findings should be interpreted within their experimental context and not treated as established clinical outcomes. Puritide Research supplies Gonadorelin strictly for laboratory use; it is not approved for human or veterinary application.
Gonadorelin Mechanism of Action (Research Only)
Gonadorelin is studied for its agonist action at the GnRH receptor and its regulation of pituitary gonadotropin release. The mechanisms below reflect observations from biochemical assays, cell-culture studies, and animal models, and should be read strictly in a research context.
GnRH Receptor Engagement
Gonadorelin binds the GnRH receptor (GnRHR), a G-protein-coupled receptor expressed on pituitary gonadotrope cells. Receptor engagement is coupled predominantly to Gq/11 signaling, driving phospholipase C activation, inositol trisphosphate production, and intracellular calcium mobilization, the cascade studied as the trigger for LH and FSH synthesis and secretion.
Pulsatile Signaling and HPG Axis Regulation
A central theme in Gonadorelin research is the importance of stimulation pattern. In experimental models, pulsatile receptor activation is associated with sustained gonadotropin release, whereas continuous stimulation is studied for receptor desensitization and downregulation. This distinction makes Gonadorelin a valuable probe of temporal receptor dynamics.
Because it matches native GnRH, Gonadorelin is used to study the full HPG feedback network, hypothalamic input, pituitary response, and gonadal feedback, as a research tool rather than representing a single defined mechanism.
Gonadorelin Research Applications
Gonadorelin is investigated across reproductive endocrinology and receptor-signaling research as a native GnRH agonist. The observations below derive from biochemical studies, cell-based assays, and animal models, and should be interpreted within their respective settings.
HPG Axis and Gonadotropin-Release Studies
A primary application is the study of LH and FSH release from pituitary gonadotropes and the regulation of the hypothalamic-pituitary-gonadal axis in cell and animal models. Researchers use Gonadorelin to characterize gonadotropin secretion dynamics under controlled conditions.
Gonadorelin is also used to investigate how pulsatile versus continuous receptor stimulation shapes gonadotrope responsiveness, receptor desensitization, and downstream signaling.
GnRH Receptor Pharmacology
Researchers employ Gonadorelin as a reference agonist for characterizing GnRH receptor binding, signaling coupling, and comparative pharmacology against synthetic GnRH analogs. These studies aim to characterize receptor and axis biology rather than to establish physiological or therapeutic effects.
Laboratory Safety & Handling (Research Use Only)
Gonadorelin is a synthetic, lyophilized research peptide for laboratory investigation only. It should be handled by qualified personnel in controlled environments, in accordance with institutional policies, laboratory safety procedures, and applicable regulations. As an investigational material, laboratories should implement practices that prioritize material integrity, traceability, and reproducibility.
Handling & Storage Guidelines
Follow institutional SOPs, chemical hygiene plans, and approved protocols; wear appropriate PPE (lab coat, gloves, eye protection); and use engineering controls where required. Record lot numbers, storage conditions, and handling activities, and retain Certificates of Analysis and batch documentation to support traceability and audit readiness.
Store material under the conditions specified in product documentation, protected from excessive heat, moisture, and direct light. Maintain consistent conditions throughout the study period and monitor storage records as part of quality assurance.
Certificate of Analysis & Quality Assurance
Each Gonadorelin batch ships with a third-party-verified Certificate of Analysis, providing transparent, research-grade quality control. The CoA includes a purity assessment (HPLC / reverse-phase chromatography), mass-spectrometry identity confirmation, and lot number, testing date, and method documentation.
Researchers may request sample CoAs (PDF) ahead of purchase to confirm testing parameters, analytical methods, and batch consistency, and are encouraged to perform independent verification.
Research Use Only
