Triptorelin Acetate API CAS 57773‑63‑4 | High Purity GnRH Agonist Decapeptide Supplier China

Core Selling Points

✅ ≥98% HPLC Purity Triptorelin Acetate API with Batch‑Specific COA Available

✅ Verified by HPLC, LC‑MS and Amino Acid Composition Analysis for D‑Trp‑modified decapeptide full‑sequence identity confirmation

✅ China Peptide API Manufacturer with Fmoc‑SPPS Workflow & GMP‑Aligned Quality System

✅ Specialized in tryptophan oxidation, arginine racemization & diastereomeric impurity control

✅ Complete Documentation Package: COA, HPLC Chromatogram, LC‑MS Report & MSDS

✅ Flexible Supply from Research Samples to Bulk Peptide API Orders Worldwide

What Is Triptorelin Acetate API?

Triptorelin Acetate API is a synthetic D‑tryptophan‑substituted decapeptide GnRH agonist, acetate salt form, full‑sequence: pGlu‑His‑Trp‑Ser‑Tyr‑D‑Trp‑Leu‑Arg‑Pro‑Gly‑NH₂, molecular formula C₆₄H₈₂N₁₈O₁₃·C₂H₄O₂, theoretical molecular weight 1371.6 Da. The D‑Trp modification improves receptor affinity and metabolic stability versus native GnRH, widely applied for pituitary gonadotropin‑axis, reproductive endocrinology, hormone‑dependent oncology and sustained‑release formulation pre‑clinical research.

Manufactured via optimized Fmoc solid‑phase peptide synthesis under GMP‑aligned clean‑workshop conditions, our Triptorelin Acetate API strictly controls tryptophan oxidative degradation, arginine racemization, diastereomeric impurities and deletion fragments, securing consistent GnRH‑receptor agonist bioactivity and reliable batch‑to‑batch reproducibility. HDM BIO serves global biotech labs, pharma R&D institutes and biological reagent manufacturers, supporting milligram‑level lab samples up to kilogram‑scale worldwide bulk API procurement. This peptide raw material is for laboratory pre‑clinical research only and shall not be directly used for human clinical administration.

What Are the Official Quality Specifications of Triptorelin Acetate API?

Every production batch of Triptorelin Acetate undergoes multi‑layer QC testing including HPLC, LC‑MS and amino acid composition analysis in HDM BIO in‑house analytical laboratory. Batch‑specific COA is issued for every order.

Item	Specification	Result
Appearance	White to off-white powder	Consistent
Purity (HPLC)	≥98%	99.93%
MS Identity	Consistent with reference standard	Confirmed
Conclusion	Cosmetic raw material requirement	Passed

Triptorelin Acetate vs Related GnRH‑Family Peptides

For buyers sourcing GnRH‑agonist peptide raw materials for reproductive‑endocrine pre‑clinical research, this comparison clarifies core differences for raw‑material selection：

Product	Target Mechanism	Structural Feature	Primary Research Application	CAS Number
Triptorelin Acetate	High‑potency GnRH receptor agonist, suppress LH/FSH secretion	Decapeptide with position‑6 D‑Trp substitution	Reproductive endocrinology, hormone‑sensitive oncology, sustained‑release depot formulation R&D	57773‑63‑4
Gonadorelin Acetate	Native‑sequence GnRH agonist	Unmodified wild‑type decapeptide	Pituitary hormone‑release basic pharmacology	34973‑08‑5

This section covers long‑tail keywords: Triptorelin Acetate decapeptide raw material, D‑Trp modified GnRH agonist API, reproductive‑endocrine research peptide.

How to Buy Triptorelin Acetate API from a Trustworthy Supplier?

When sourcing Triptorelin Acetate API for endocrinology and oncology pre‑clinical studies, R&D teams and international purchasers need to evaluate five core criteria to mitigate quality risks:

HPLC purity validation: Confirm ≥98% HPLC purity with batch‑specific COA and full impurity chromatogram; pay special attention to tryptophan oxidation and arginine‑derived diastereomeric impurities which will distort GnRH‑receptor bioassay results
Multi‑method structural confirmation: Peptide identity validated by HPLC, LC‑MS and amino‑acid composition analysis to confirm intact D‑Trp‑modified full‑length decapeptide molecule
Complete batch documentation package: Guarantee each order receives batch‑specific COA, HPLC chromatogram, LC‑MS report and MSDS for global import customs clearance and laboratory audit compliance
Qualified manufacturing system: Select China peptide API manufacturer with mature Fmoc‑SPPS workflow and GMP‑aligned quality system, proven experience on Trp‑containing decapeptide synthesis and racemization‑suppression technology
Global flexible supply: Confirm vendor supports both small‑scale research samples and large‑volume worldwide bulk peptide API orders

Triptorelin Acetate API Price & Bulk Ordering Guide 2026

If you are searching for Triptorelin Acetate API price, bulk quotation and delivery terms, please refer to key procurement information as follows:

Minimum Order Quantity: Flexible MOQ, milligram & gram‑scale research samples available; kilogram‑level worldwide bulk API supply for sustained R&D projects
Sample Access: Trial research samples for lab evaluation; contact sales team to get formal sample quotation
Bulk Kilogram Pricing: Tiered pricing structure; larger bulk volume brings competitive unit price
Production Lead Time: Complex D‑Trp‑containing decapeptide with racemization & oxidation‑control requirements; sales will confirm exact production schedule upon formal inquiry
Shipping Options: Sealed cold‑recommended shipping worldwide; avoid prolonged room‑temperature and light exposure; we supply complete documentation package (batch‑specific COA, HPLC chromatogram, LC‑MS report, MSDS, commercial invoice, packing list) for global customs clearance

Triptorelin Acetate API Procurement Guide for Global Buyers

Before placing purchase orders for D‑tryptophan‑modified GnRH‑agonist peptide API raw materials, international procurement teams should finish these verification steps to mitigate potential risks:

Supplier qualification check: Confirm the manufacturer owns independent peptide‑synthesis workshop and QC lab with GMP‑aligned quality system, hands‑on experience on Trp‑containing decapeptide synthesis and arginine racemization‑suppression technology
Document inspection: Request pre‑shipment complete documentation package including batch‑specific COA, HPLC chromatogram, LC‑MS report and MSDS; require multi‑method peptide identity confirmation and impurity profile covering tryptophan oxidation and diastereomeric impurities
Product confirmation: Confirm purity standard, endotoxin level and light‑proof cold‑storage requirement match your experimental design; note lyophilized Triptorelin Acetate API is photosensitive especially after reconstitution
MOQ & lead‑time confirmation: Verify research sample / bulk peptide API worldwide availability, decapeptide production cycle and order‑adjustment policy
Shipping‑document confirmation: Make sure supplier can provide complete paperwork set to satisfy import requirements of your target region

About HDM BIO Triptorelin Acetate API Manufacturing Capability

HDM BIO possesses more than 10‑year expertise in Fmoc‑SPPS peptide‑API synthesis under GMP‑aligned quality system, specialized in D‑amino‑acid‑modified decapeptide manufacturing with oxidation and racemization side‑reaction control.

Dedicated Fmoc‑SPPS production lines; adopt double‑coupling protocol and racemization‑suppression additives during arginine coupling to reduce diastereomeric impurities
Strictly light‑shielded & inert‑atmosphere protection throughout cleavage, purification and lyophilization workflow to suppress tryptophan photo‑oxidative degradation
Independent analytical laboratory equipped with HPLC, LC‑MS and amino‑acid composition analysis instruments; specialized RP‑HPLC gradient workflow for separation of oxidized‑Trp variants, diastereomers and deletion‑truncated fragments
Peptide API products exported worldwide to over 70 countries, supporting university labs, biotech startups and pharmaceutical R&D institutes
Stable annual production capacity for research‑grade peptide API raw materials, supporting long‑term framework cooperation
Professional technical team experienced in GnRH‑family peptide‑series synthesis and D‑amino‑acid modified custom peptide development

What Technical Challenges Exist in Triptorelin Acetate API Synthesis & Production?

Triptorelin Acetate API is a D‑tryptophan‑containing decapeptide, carries oxidation‑sensitive tryptophan residue and arginine‑prone racemization risk. Controlling Trp oxidative degradation, suppressing Arg racemization, removing deletion fragments and separating closely‑eluting diastereomeric impurities constitute core technical bottlenecks separating qualified peptide‑API manufacturers from low‑grade suppliers.

Key production challenges:

‑ Arginine coupling step is prone to racemization, generating hard‑to‑separate diastereomeric impurities that greatly interfere with GnRH‑receptor bioactivity

‑ Dual tryptophan residues (L‑Trp & D‑Trp) are sensitive to light and oxidative environment; oxidized‑Trp by‑products deteriorate receptor‑binding potency

‑ Step‑wise decapeptide elongation may produce cumulative deletion‑fragment impurities with similar RP‑HPLC retention behavior, difficult for baseline separation

‑ Acetate‑salt counter‑ion exchange must be tightly controlled to minimize residual trifluoroacetate carry‑over from purification

‑ Single HPLC test is insufficient for full‑quality judgement; multi‑validation via HPLC, LC‑MS plus amino‑acid composition analysis is mandatory to guarantee intact D‑Trp‑modified decapeptide for GnRH‑functional biology assays

How Does Triptorelin Acetate API Work in Laboratory Research?

As synthetic D‑Trp‑modified GnRH agonist decapeptide, Triptorelin Acetate API binds pituitary GnRH receptors, triggers initial LH/FSH surge followed by sustained receptor desensitization and gonadotropin suppression; widely used for reproductive‑endocrine mechanism, hormone‑dependent tumor model, assisted‑reproduction pharmacology and biodegradable depot‑formulation pre‑clinical research. All mechanism descriptions are limited to in‑vitro and pre‑clinical animal‑research scenarios only.

How Is Triptorelin Acetate API Manufactured at HDM BIO?

Triptorelin Acetate API requires strict full‑process control for arginine racemization suppression, tryptophan anti‑oxidation, diastereomer removal and acetate‑salt counter‑ion exchange, operated within our GMP‑aligned quality system.

Read related guide: Disulfide‑Containing Peptide API Manufacturing Guide | Fmoc SPPS Technology Explained

Complete Triptorelin Acetate API Manufacturing Workflow

Raw‑material QC of Fmoc‑amino‑acid building blocks (D‑Trp / Arg side‑chain‑protection inspection) → Step‑wise decapeptide SPPS coupling with racemization‑suppression double‑coupling protocol on solid resin → Resin cleavage & global deprotection under low‑oxidation scavenger system with full light‑shield → Crude peptide pretreatment under inert nitrogen & dark condition → Multi‑stage preparative‑HPLC purification (remove deletion‑fragment impurities, tryptophan‑oxidation variants & diastereomeric by‑products) → Counter‑ion exchange for acetate salt formation → Buffer‑exchange → Vacuum lyophilization under oxygen‑free light‑proof environment → Full multi‑method QC testing (HPLC, LC‑MS, amino‑acid composition analysis for identity verification, impurity profiling & endotoxin test) → Batch‑specific COA issuance → Light‑proof, low‑moisture sealed packaging under nitrogen purge

QC Inspection Workflow

Incoming raw‑material QC → In‑process racemization‑risk & oxidative‑impurity monitoring → HPLC purity testing (decapeptide‑diastereomer resolving gradient method) → LC‑MS molecular‑weight & D‑Trp‑modified‑sequence verification → Supplementary amino‑acid composition analysis for peptide identity confirmation → Trp‑oxidation & diastereomer & deletion‑impurity quantitative analysis → Moisture & heavy‑metal testing → Residual‑solvent & endotoxin detection → Final batch‑release approval under GMP‑aligned quality system

Core Process Highlights

‑ Racemization‑suppression additive plus double‑coupling technology to reduce arginine‑derived diastereomeric impurities ‑ Full‑process light‑shield + inert‑nitrogen atmosphere to suppress dual tryptophan residues photo‑oxidation ‑ Optimized RP‑HPLC gradient for baseline separation of deletion truncated fragments and diastereomeric variants ‑ Controlled counter‑ion exchange to achieve qualified acetate salt, lower residual TFA ‑ Multi‑level identity confirmation: HPLC, LC‑MS plus amino‑acid composition analysis verifying intact D‑Trp‑modified Triptorelin Acetate decapeptide ‑ Lyophilized solid stable stored at −20 °C sealed under nitrogen, keep away from light; avoid repeated freeze‑thaw cycles, reconstituted peptide solution shall be aliquoted and stored at −80 °C.

What Are the Main Application Scenarios of Triptorelin Acetate API?

GnRH‑receptor & reproductive‑endocrinology research: Pituitary LH/FSH secretion assay, gonad desensitization pharmacology, reproductive‑hormone axis mechanism study
Hormone‑dependent oncology pre‑clinical research: Androgen‑/estrogen‑dependent tumor animal‑model exploration, hormone‑deprivation therapeutic mechanism research
Assisted reproduction pharmacology research: Controlled ovarian‑stimulation related in‑vitro and animal‑model assay
Sustained‑release peptide‑formulation development: Biodegradable microsphere / depot pre‑formulation, long‑acting peptide delivery‑system R&DResearchGa...
Biomedical reagent preparation: Laboratory reference standards for GnRH‑agonist peptide research
D‑amino‑acid‑modified‑decapeptide‑process‑development research: Racemization‑control synthesis benchmark compound

Why Choose HDM BIO As Your Triptorelin Acetate API Supplier?

‑ 10+‑year China‑based peptide‑manufacturing experience with Fmoc‑SPPS production and GMP‑aligned quality system

‑ Specialized capability for complex long‑chain Tesamorelin peptide synthesis and purification, effectively reduce aggregation‑caused deletion fragments, methionine‑oxidation variants and incomplete‑hexenoylation impurities

‑ Every batch supported by multi‑validation: HPLC, LC‑MS and amino‑acid composition analysis, delivered with batch‑specific complete documentation package

‑ Complete batch‑wise production‑traceability documents for Tesamorelin Powder

‑ Flexible worldwide supply capacity: research samples to kilogram‑scale bulk peptide orders

‑ Global‑export service covering more than 70 countries worldwide

‑ Professional technical team supporting GHRH‑family peptide research and custom‑analog synthesis consulting

FAQs About Triptorelin Acetate API

Q: Where can I buy Triptorelin Acetate API from China?

A: HDM BIO is a Chinese peptide‑API manufacturer with Fmoc‑SPPS production and GMP‑aligned quality system, specialized in D‑amino‑acid modified GnRH‑agonist decapeptide. We deliver high‑purity Triptorelin Acetate API for global pharmaceutical R&D teams and bioreagent laboratories, flexible worldwide supply from research samples to bulk peptide API orders.

Q: What documents should a qualified Triptorelin Acetate API supplier provide?

A: Reliable supplier shall supply complete documentation package: batch‑specific COA, HPLC chromatogram, LC‑MS report & MSDS. Peptide identity is verified by HPLC, LC‑MS and amino‑acid composition analysis; tryptophan oxidation and diastereomeric impurity‑testing data are available upon request.

Q: What is the CAS number of Triptorelin Acetate API?

A: The CAS registry number of Triptorelin Acetate API is 57773‑63‑4.

Q: What purity grade of Triptorelin Acetate API can you deliver?

A: Standard research‑grade ≥98% HPLC purity. Every batch comes with batch‑specific COA and multi‑method identity validation including amino‑acid composition check. Higher‑purity specifications and GnRH‑series custom‑peptide‑analog synthesis are available for special experimental requirements.

Q: How should lyophilized Triptorelin Acetate API be stored?

A: Store sealed under nitrogen atmosphere at −20 °C, strictly keep away from light and moisture. Strictly avoid repeated freeze‑thaw cycles. Aqueous reconstituted solution is sensitive to light and oxidation; prepare single‑use aliquots and store at −80 °C.

Q: Can I get Triptorelin Acetate API research samples before bulk purchase?

A: Yes. We provide milligram‑to‑gram‑level research samples attached with complete documentation package for laboratory assessment.

Q: What is the MOQ for bulk Triptorelin Acetate API worldwide orders?

A: MOQ is flexible depending on purity grade and packaging specifications. We support small‑scale research samples and large‑volume worldwide bulk peptide API orders for different‑project requirements.

Q: What is the molecular weight of Triptorelin Acetate API?

A: Theoretical molecular weight: 1371.6 Da (acetate salt), molecular formula C₆₄H₈₂N₁₈O₁₃·C₂H₄O₂.

Scientific Review

Reviewed by:

HDM BIO Peptide Technical Team

Expertise:

Fmoc‑SPPS peptide synthesis Disulfide‑bond‑containing cyclic hormone peptide manufacturing Multi‑method peptide characterization: HPLC, LC‑MS and disulfide‑bond verification

Last Updated: August 2026

Disclaimer: All product content serves academic research and laboratory raw‑material reference only. Not for human clinical use, diagnosis or treatment.