Carbetocin API Supplier China | Oxytocin Analog Peptide Manufacturer CAS 37025-55-1

Core Selling Points

✅ GMP-Aligned Oxytocin Peptide Manufacturing

✅ ≥98% HPLC Purity & Full Structural Verification

✅ Batch COA, HPLC & LC-MS Test Reports Available

✅ Global Bulk API Supply & Customs Clearance Support

✅ Custom Peptide Synthesis & OEM Service

What Is Carbetocin API?

Carbetocin powder is a long-acting synthetic oxytocin analog peptide raw material with a disulfide bond-stabilized cyclic structure, widely applied in reproductive physiology mechanism research and oxytocin-related pharmaceutical intermediate development. Compared with native oxytocin, Carbetocin possesses stronger enzymatic degradation resistance and longer receptor binding duration, serving as a core research-grade peptide API for sustained uterine function and endocrine regulation studies.

Produced via strict GMP-aligned Fmoc solid-phase peptide synthesis and multi-stage gradient HPLC purification, our Carbetocin API features stable structural activity, ultra-high purity and consistent batch-to-batch quality. As a reliable China-based oxytocin peptide supplier, HDM BIO provides global clients with gram-level samples, large-scale bulk API supply and customized peptide modification services.

What Are the Official Quality Test Results of Carbetocin API?

Every production batch of Carbetocin Powder undergoes rigorous analytical testing in HDM BIO's in-house QC laboratory, with a unique batch COA issued for all bulk orders.

Item	Specification	Result
Appearance	White to off-white powder	Consistent
Purity (HPLC)	≥98%	99.36%
MS Identity	Consistent with reference standard	Confirmed
Conclusion	Cosmetic raw material requirement	Passed

Why Is Carbetocin Different From Oxytocin?

Carbetocin is a structurally optimized synthetic oxytocin analog with significantly improved stability and pharmacodynamic characteristics compared with native oxytocin. The structural modification and disulfide bond cyclization design enhance its resistance to endogenous enzymatic degradation, effectively extending receptor interaction duration and biological activity time.

Native oxytocin shows short half-life and rapid metabolic inactivation, which limits long-term experimental observation and formulation research. In contrast, Carbetocin's stable cyclic structure makes it the preferred peptide material for sustained uterine function research, long-acting endocrine mechanism studies and novel oxytocin-related pharmaceutical R&D.

What Is the Amino Acid Sequence of Carbetocin?

Carbetocin is a cyclic nonapeptide oxytocin analog with a fixed disulfide bridge structure, which is the core basis for its high stability and long-acting characteristics.

Carbetocin Full Amino Acid Sequence：Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂

Our factory provides complete LC-MS sequence verification, structural conformation analysis and impurity profile testing for each batch of Carbetocin API to ensure full structural consistency and experimental reliability.

What Is the Research Mechanism of Carbetocin API?

Carbetocin acts as a high-stability oxytocin receptor agonist peptide material. It specifically binds to oxytocin receptors on myometrial cells and participates in intracellular calcium signaling and uterine smooth muscle contraction regulation research. Benefiting from its optimized cyclic structure and long-acting characteristics, Carbetocin is widely used for sustained endocrine regulation mechanism exploration and long-term pharmacological experimental research.

Disclaimer: This product is laboratory research and pharmaceutical R&D raw material only, not for direct human and animal clinical administration.

How Does Carbetocin Compare With Other Reproductive Peptides?

Peptide Product

Peptide Type

CAS Number

Carbetocin API

Long-acting oxytocin agonist

37025-55-1

Atosiban Acetate

Oxytocin antagonist

90779-69-4

Native Oxytocin

Endogenous short-acting agonist

50-56-6

Carbetocin API Supply Capability & MOQ

Supply Option	Availability
R&D sample supply	Available
Pilot experiment batch	Available
Large-scale bulk API supply	Available
Custom peptide synthesis & modification	Available

What Documentation Is Available for Carbetocin API Bulk Procurement?

HDM BIO provides complete API-level standardized documents to meet global pharmaceutical procurement, laboratory research and customs clearance requirements:

Batch-specific official COA certificate
HPLC purity chromatogram report
LC-MS molecular & sequence verification data
Official product specification sheet
MSDS safety technical data sheet
GMP & ISO quality system certification
Complete international export clearance documents

What Factors Determine Carbetocin API Bulk Price?

The bulk quotation of Carbetocin API is affected by multiple customized procurement and technical factors:

Custom purity grade and additional professional testing items
Total order quantity (sample/pilot/bulk batch)
Custom packaging, labeling and dedicated document requirements
Technical support and after-sales service specifications
International shipping destination and logistics methods

We support full-scenario supply solutions, from small trial samples for exploratory experiments to ton-level bulk API supply for industrial production. Contact our sales team to obtain the latest customized bulk quotation and delivery cycle.

What Should Buyers Verify Before Purchasing Carbetocin API?

To ensure experimental accuracy and procurement compliance, global buyers need to verify the following core indicators when sourcing Carbetocin API:

HPLC full purity report and related impurity profile data
LC-MS sequence & disulfide bond structural verification results
Batch-exclusive COA and complete quality traceability records
Product stability validation data under standard storage conditions
Complete export documents and global customs clearance support
Manufacturer's GMP production qualification and technical R&D capability

Why Choose HDM BIO as Your Carbetocin API Supplier?

Complete Production Workflow

Raw Material Inspection → Fmoc SPPS Sequential Coupling → Disulfide Bond Formation & Cyclization Control → Resin Cleavage & Global Deprotection → Multi-stage Gradient HPLC Purification → Vacuum Lyophilization → QC Full Testing → Batch COA Issuance → Sealed Light-Proof API Packaging

QC Inspection Workflow

Incoming Raw Material QC → In-process Real-time Monitoring → HPLC Purity Detection → LC-MS Structural Verification → Moisture & Heavy Metal Testing → Residual Solvent Detection → Final Batch Release Approval

Core Manufacturing Advantages

The disulfide bond cyclization process is the critical quality attribute of Carbetocin peptide synthesis. We adopt precise process parameter control to avoid structural deviation and invalid isomer generation, ensuring accurate cyclic peptide conformation. Multi-stage high-precision HPLC purification effectively removes synthesis byproducts and trace impurities, guaranteeing stable ≥98% high purity of finished API. Professional vacuum freeze-drying and sealed light-proof packaging maintain long-term structural stability during transportation and storage.

How to Store & Handle Carbetocin API for Optimal Stability?

Storage Condition: Seal tightly, store at -20℃ in dry, dark and low-temperature environment
Handling Note: Avoid repeated freeze-thaw cycles; weigh and prepare solutions in dry dust-free environment
Shelf Life: 2 years under standard sealed low-temperature storage
Safety Specification: For pharmaceutical R&D and laboratory research only, not for clinical use

Main Application Scenarios of Carbetocin API

Reproductive physiology research: Uterine smooth muscle function and oxytocin receptor mechanism experiments
Pharmaceutical API intermediate: Long-acting oxytocin analog formulation development and pre-clinical research
Biomedical reagent preparation: Laboratory reference standards and experimental control reagent manufacturing
Peptide structure-activity research: Cyclic peptide stability and receptor binding efficiency study

What Are Common FAQs About Carbetocin API?

Q: What is the CAS number of Carbetocin API?

A: The unified CAS registration number of Carbetocin API is 37025-55-1, the global standard chemical identification for this long-acting oxytocin analog peptide.

Q: Where can I buy Carbetocin API from China?

A: Global clients can purchase high-purity Carbetocin API directly from HDM BIO, a professional China-based GMP peptide manufacturer. We provide full document support, flexible MOQ and global bulk delivery service.

Q: What is the difference between Carbetocin and Oxytocin?

A: Carbetocin Powder is a synthetic cyclic oxytocin analog with structural modifications and stable disulfide bonds, featuring stronger enzymatic degradation resistance and longer biological activity duration. Native oxytocin is an endogenous short-acting peptide with rapid metabolism, suitable for basic physiological experiments, while Carbetocin is more applicable for long-term mechanism research and new drug formulation development.

Q: Is Carbetocin available for bulk pharmaceutical supply?

A: Yes. HDM BIO supports full-scale bulk supply of Carbetocin API, including pilot batch trial production and large-scale commercial bulk orders, with complete COA, HPLC, LC-MS and other API-level qualification documents.

Q: Where can I buy Carbetocin powder in bulk?

A: You can buy high-purity Carbetocin API powder in bulk from HDM BIO. We provide tiered bulk pricing, customized packaging and one-stop technical support for global pharmaceutical enterprises and research institutions.

Q: What is the purity of your Carbetocin API?

A: Our standard Carbetocin API purity is ≥98% HPLC, and higher customized purity specifications and testing packages are available on request.

Q: Can you provide batch-specific COA and test reports?

A: Yes. Every batch of Carbetocin API is equipped with exclusive COA, HPLC chromatogram, LC-MS structural verification report and full quality documents to support global procurement and research verification.

What Compliance & Technical Review Standards Apply to Carbetocin powder?

Reviewed by HDM BIO Technical Team

Professional Field: Fmoc solid phase peptide synthesis, cyclic reproductive peptide development, HPLC high-precision purification, GMP peptide quality control
Review Scope: Molecular sequence verification, cyclization process validation, quality specification compliance, API application scenario suitability
Update Date: July 2026
Manufacturer: HDM BIO (China)
Quality Standard: GMP-aligned production, ISO quality management system
Usage Restriction: Only for pharmaceutical R&D and laboratory research, not for direct clinical administration.

Important Regulatory Notice

Carbetocin API is a research-grade peptide raw material, only used for scientific research, pharmaceutical intermediate development and reagent manufacturing. Purchasers need to comply with local regional regulatory policies. All page content is for B2B procurement reference only.