Description
Product Description
Triptorelin Injection (CAS 57773-63-4) is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH) designed to act as a potent agonist at GnRH receptors. Its primary utility in preclinical research lies in studying reproductive hormone regulation, pituitary gonadotropin secretion, and feedback mechanisms of the hypothalamic-pituitary-gonadal (HPG) axis. By binding to GnRH receptors in the anterior pituitary, Triptorelin initially stimulates luteinizing hormone (LH) and follicle-stimulating hormone (FSH) release, followed by receptor desensitization and downregulation upon sustained exposure, providing a valuable tool for endocrine modulation studies.
Preclinical studies have demonstrated that Triptorelin Injection effectively modulates gonadotropin secretion in both in vitro pituitary cell models and in vivo animal models. Researchers use it to explore the molecular mechanisms of hormone receptor signaling, the dynamics of LH/FSH regulation, and the downstream effects on gonadal steroidogenesis. Additionally, Triptorelin is employed to investigate feedback loops, receptor internalization, and cellular responses associated with chronic GnRH receptor stimulation.
The injectable formulation of Triptorelin is typically supplied as a sterile, lyophilized solution or powder for reconstitution, allowing precise dosing in laboratory studies. High purity (≥99%) ensures experimental reproducibility, and the controlled manufacturing process provides consistency across batches. Its stability under proper storage conditions (2–8 °C) facilitates reliable long-term research applications, including dose-response assays, hormone release profiling, receptor desensitization experiments, and endocrine signaling investigations.
Beyond endocrine research, Triptorelin Injection is utilized to model hormone-dependent cellular responses, investigate gonadal development, and study regulatory mechanisms in reproductive physiology. The peptide’s robust activity profile allows mechanistic studies in neuroendocrine pathways, feedback control, and receptor pharmacology. Triptorelin’s capacity to modulate both acute and chronic GnRH receptor activity makes it indispensable for exploring temporal patterns of pituitary and gonadal hormone release in laboratory research.
Triptorelin Injection also supports studies involving combination treatments, receptor antagonists, or modulators of steroidogenesis, enabling comprehensive exploration of hormonal regulation and cellular adaptation. Researchers can employ Triptorelin to analyze signaling network crosstalk, receptor internalization kinetics, transcriptional responses to hormonal stimuli, and adaptive mechanisms within endocrine tissues. Its high purity and sterile preparation ensure reproducibility in pharmacological studies, mechanistic experiments, and preclinical investigations of the HPG axis.

Product Specifications
| Parameter | Specification / Data |
|---|---|
| Chemical Name / Synonym | Triptorelin, D-Trp6-GnRH, Triptorelin acetate |
| CAS Number | 57773-63-4 |
| Purity / Assay | ≥99% |
| Molecular Formula | C64H82N18O13 (as acetate salt) |
| Molecular Weight | 1310.43 g/mol (acetate salt) |
| Appearance / Physical Form | Sterile lyophilized powder for injection |
| Storage Temperature | 2–8 °C |
| Solubility | Soluble in sterile water for injection |
| Batch Consistency | Verified by HPLC, MS, NMR |
| Application | Preclinical reproductive and endocrine research, GnRH signaling studies |
Triptorelin Injection’s purity and batch consistency are confirmed using HPLC, MS, and NMR. Its sterile formulation enables safe laboratory use for dose-response studies, receptor activation experiments, hormone release assays, and in vivo preclinical modeling. Researchers benefit from the reproducible activity and stability of this peptide for mechanistic studies and endocrine pathway analysis.
Mechanism of Action
Triptorelin is a GnRH receptor agonist that mimics endogenous gonadotropin-releasing hormone activity. Upon binding to GnRH receptors in the anterior pituitary, Triptorelin induces a transient surge of LH and FSH release. Continuous or repeated administration results in receptor desensitization and downregulation, ultimately reducing gonadotropin secretion. This dual-phase action allows researchers to study both acute stimulatory responses and chronic suppression of the HPG axis.
Mechanistically, Triptorelin activates intracellular G-protein-coupled receptor signaling, leading to phospholipase C activation, inositol triphosphate (IP3) formation, calcium mobilization, and protein kinase C (PKC) activation. These signaling events culminate in the transcriptional regulation of LH and FSH subunit genes and the modulation of hormone secretion. Prolonged receptor activation triggers receptor internalization, beta-arrestin recruitment, and desensitization, providing a mechanistic framework for studying receptor dynamics, feedback control, and endocrine adaptation.
Triptorelin is used extensively to model hormone-dependent processes, including gonadal steroidogenesis, reproductive tissue development, and feedback regulation of pituitary function. Its ability to induce controlled hormone release and subsequent downregulation makes it a versatile tool for studying endocrine physiology, receptor pharmacology, and hormone-dependent cellular responses in preclinical settings.

Side Effects
Use aseptic techniques when handling the injectable formulation.
Avoid contamination, ingestion, or direct skin contact with reconstituted peptide.
Handle under appropriate biosafety conditions.
Dispose of all waste according to institutional and governmental safety regulations.
Store at 2–8 °C to maintain stability and biological activity.
Side effects listed are specific to laboratory handling and storage. Triptorelin Injection is intended exclusively for research applications.
Shipping Guarantee
All shipments are handled using validated cold-chain logistics to preserve peptide integrity. Each package is sealed in sterile, moisture-proof containers with secondary protective wrapping and continuous temperature monitoring. Products are shipped via express international couriers with full tracking and insurance coverage.
Trade Assurance
We ensure product authenticity, verified ≥99% purity, and compliance with analytical standards (HPLC, MS, and NMR). Each batch is supplied with a Certificate of Analysis (CoA). Our trade assurance policy guarantees replacement or refund for any deviation from listed specifications.
Payment Support
We provide flexible and secure global payment options to support international research transactions. Accepted payment methods include PayPal, major credit cards (Visa, MasterCard, American Express), telegraphic transfer (T/T), and cryptocurrencies (USDT, Bitcoin, Ethereum). All transactions are protected by industry-standard encryption and verified payment gateways to ensure confidentiality and fund security.
Keywords
Triptorelin Injection, CAS 57773-63-4, GnRH agonist, reproductive research reagent, endocrine research peptide, pituitary hormone modulator, preclinical research compound, high purity, laboratory peptide, hormone signaling studies
Disclaimer
For laboratory research use only. Not for diagnostic or therapeutic use. Handle with appropriate safety measures and dispose of waste according to institutional guidelines.




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