Triptorelin Raw Material for Sale – High Purity Research Peptide

Product Overview

Triptorelin is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH), also known as luteinizing hormone-releasing hormone (LHRH). As a potent GnRH receptor agonist, it initially stimulates the release of gonadotropins—luteinizing hormone (LH) and follicle-stimulating hormone (FSH)—before inducing receptor downregulation and prolonged suppression of the pituitary-gonadal axis. This biphasic mechanism makes triptorelin a valuable tool in endocrinology, receptor pharmacology, and hormone-dependent disease research. For research applications, triptorelin raw material is supplied as a sterile, lyophilized (freeze-dried) powder that is white to off-white in appearance. Each batch is verified by high-performance liquid chromatography (HPLC) to confirm a purity of ≥98%, ensuring reliable and reproducible results in laboratory studies. The product is strictly intended for in vitro and in vivo laboratory research purposes only; it is not manufactured, tested, or released for human or veterinary diagnostic, therapeutic, or clinical use.

Chemical and Physical Properties

The molecular structure of triptorelin is defined by the chemical formula C₆₄H₈₂N₁₈O₁₂, giving a molecular weight of 1311.45 g/mol. Its amino acid sequence is pGlu-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH₂, with a pyroglutamyl residue at the N-terminus and an amidated glycine at the C-terminus. The substitution of natural L-Trp with D-Trp at position 6 enhances receptor-binding affinity and metabolic stability, prolonging the peptide’s half-life compared to endogenous GnRH. The lyophilized powder is highly soluble in water, dimethyl sulfoxide (DMSO), and ethanol, facilitating reconstitution into aqueous buffers or organic solvents for diverse experimental protocols. For long-term stability, the freeze-dried product should be stored at −20 °C, shielded from light and moisture. When appropriately stored, triptorelin raw material remains stable for years; however, once reconstituted, the solution should be aliquoted and kept at −20 °C or below to avoid freeze-thaw cycles that could compromise peptide integrity.

Quality and Specifications

• Purity ≥98% – Each batch of triptorelin is analyzed by analytical reverse-phase HPLC, with chromatographic purity consistently exceeding 98% and often reaching >99%. Impurity profiles are well characterized, and any significant related substances are reported in the batch-specific Certificate of Analysis (CoA).
• Peptide content >80% – The lyophilized powder is provided in the acetate salt form, which means that the net peptide weight accounts for more than 80% of the total dry mass, with counterions and residual moisture making up the remainder. Exact peptide content is determined by quantitative amino acid analysis or nitrogen content determination and is clearly stated on the CoA.
• Endotoxin level <1 EU/mg – The manufacturing process adheres to current good manufacturing practices (GMP) for research-grade peptides, including rigorous control of bacterial endotoxins. Limulus amebocyte lysate (LAL) testing confirms a consistent endotoxin concentration below 1 EU/mg, making the material suitable for in vivo studies where low endotoxin burden is critical.
• Full documentation – Every shipment is accompanied by a detailed CoA, which includes HPLC chromatograms, mass spectrometry data (ESI-MS or MALDI-TOF), solubility information, and residual solvent or TFA content where applicable. Stability data and storage recommendations are also available upon request, supporting reproducibility and regulatory compliance in academic and industrial research environments.

Research Applications

Triptorelin is widely employed in preclinical and fundamental research to dissect the role of GnRH receptor signaling in reproductive biology and beyond. Key research applications include:

• Endocrine and receptor pharmacology – Used to study GnRH receptor activation, desensitization, and internalization in pituitary gonadotrope cell lines, as well as downstream intracellular signaling cascades (e.g., MAPK, ERK, and calcium mobilization). This aids in understanding regulation of LH/FSH secretion and feedback mechanisms.
• Neuroendocrine disease models – In rodent models, triptorelin is administered to investigate hormone-dependent pathologies such as benign prostatic hyperplasia, endometriosis, and polycystic ovary syndrome (PCOS). Its ability to suppress the reproductive axis makes it a standard tool for creating hypogonadal states and studying compensatory mechanisms.
• Oncology research – Triptorelin is frequently used in xenograft and syngeneic tumor models of hormone-sensitive cancers. Researchers employ it to mimic androgen deprivation or estrogen suppression, evaluating tumor progression, metastasis, and therapeutic resistance. All such experiments remain exclusively in the laboratory setting and do not translate to therapeutic recommendations.
• Analytical reference standard – Due to its well-characterized purity and stability, triptorelin raw material can serve as a reference standard for developing and validating HPLC, LC-MS/MS, or immunoassay methods. This is particularly useful in bioanalytical laboratories focusing on peptide quantification.

All research involving triptorelin must be conducted by qualified professionals in controlled laboratory environments, in accordance with institutional and governmental guidelines.

Packaging and Shipping

• Packaging formats – Triptorelin raw material is aseptically filled into sterile, borosilicate glass vials sealed with rubber stoppers and aluminum flip-off caps. Standard research quantities include 1 mg, 5 mg, 10 mg, and 100 mg. Custom sizes, including gram-scale quantities, are available upon request to meet project-specific needs.
• Stability during transit – Although optimal long-term storage is at −20 °C, the lyophilized peptide is stable for several weeks at ambient temperature. All shipments are packed with desiccant and, where necessary, cold packs to minimize temperature excursions. Stability data demonstrate that short-term exposure to room temperature does not affect peptide purity or activity.
• International logistics – Export operations comply with all relevant customs regulations, including Harmonized System (HS) codes for peptides and research chemicals. Buyers are responsible for verifying import requirements in their country. Every shipment includes a signed declaration stating that the material is for research use only and is not intended for human or veterinary application. Proper documentation ensures smooth clearance and avoids delays at customs checkpoints.

Ordering Information

• Minimum order quantity (MOQ) – The standard MOQ for bulk triptorelin raw material is 1 gram, though smaller research packs (e.g., 1–10 mg) are also kept in stock. For pilot-scale studies or large-volume requirements, production can be tailored to deliver hundreds of grams with consistent quality.
• Lead time – In-stock items are typically dispatched within 3–5 business days after order confirmation. Custom synthesis or non-standard packaging may extend the lead time to 2–4 weeks, depending on complexity. Expedited options may be available for urgent research needs.
• Payment and confidentiality – We accept T/T (wire transfer), PayPal, and other mutually agreed payment methods. All transactions are handled with strict confidentiality, and a non-disclosure agreement (NDA) can be arranged to protect proprietary research plans.
• Pricing and inquiries – For current pricing, availability, bulk discounts, or to discuss your specific requirements, please contact our sales team directly. Our technical staff can assist with solubility, formulation, and handling recommendations to support your experimental design.

Regulatory and Compliance Notes

• This product is manufactured, labeled, and sold exclusively as a raw material for laboratory research purposes.
• It is the buyer’s responsibility to ensure compliance with all applicable local, national, and international laws and regulations governing the acquisition, handling, and use of research peptides.
• The material is not intended, approved, or authorized for use in any diagnostic, therapeutic, or clinical application, nor for administration to humans or food-producing animals.
• Any use outside of controlled, in vitro or in vivo research settings by qualified professionals is strictly prohibited.

Research use only. The information and products described herein are intended solely for in vitro and in vivo laboratory research by trained scientists. They are not for diagnostic, therapeutic, drug, veterinary, or any other form of human or animal use. Neither this document nor any product offered shall be construed as a recommendation to utilize triptorelin in any manner inconsistent with the above. Researchers must independently verify the suitability of the material for their specific experimental protocols.

For research use only. Not for human or veterinary use.