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Semaglutide

Semaglutide — research peptide from China

Compound Profile

Chemical Class
GLP-1 Receptor Agonist
Synonyms
NN9535, semaglutide
Sequence Length
31 amino acids
Receptor Target
GLP-1R (GLP-1 receptor)
Half-Life
~168 h (7 days)
Molecular Formula
C₁₈₇H₂₉₁N₄₅O₅₉
Molecular Weight
4113.58 Da
CAS Number
910463-68-2
Storage
-20°C lyophilized; 4°C reconstituted (up to 28 days)
Category
Weight Management
Total variants
10
In-stock variants
10 of 10
Purity
≥98%
Standard pack size
10 vials

Semaglutide bulk peptide sourced directly from verified Chinese manufacturer. 10mg & 20mg vials, purity tested per batch, HPLC tested. Wholesale B2B pricing.

Semaglutide is the highest-demand china peptide in the current research market. Demand for chinese peptides in the GLP-1 category has driven prices down and counterfeit risk up, making manufacturer verification the single most important sourcing decision a reseller or private brand can make. We supply finished, lyophilized semaglutide through factory coordination — not through the gray-market intermediaries that dominate the open listings.

Buy Semaglutide Peptide | Wholesale Research Grade | China Direct | Peptides of China Semaglutide Buy Semaglutide — Wholesale Research Peptide, Purity Tested Semaglutide is a weight management research compound currently in stock directly from a verified Chinese manufacturer. Every batch is tested by the manufacturer for purity and concentration as part of routine quality control. Sourcing is direct — no intermediaries. Public catalog minimum is $300 in goods per supplier. Eligible new customers may use one first-order trial without a monetary minimum; 5% off goods applies from $3,500 per supplier, excluding shipping. International shipping available.

Compound Profile

Semaglutide is a glucagon-like peptide-1 (GLP-1) receptor agonist consisting of 31 amino acids. The molecule is structurally derived from native human GLP-1 with two key modifications: a substitution at position 8 (Aib replaces Ala) that confers resistance to DPP-IV cleavage, and a C18 fatty diacid chain attached via a linker at position 26 that enables albumin binding. These modifications extend the plasma half-life to approximately 7 days, making semaglutide the longest-acting GLP-1 analogue in research use. Its pharmacokinetic profile distinguishes it from older analogues such as liraglutide (t½ ~13h) and exenatide (t½ ~2.4h). Current preclinical and clinical research on semaglutide spans several areas. In obesity and metabolic research, semaglutide has been studied in rodent models of diet-induced obesity and in large-scale human trials (STEP program), demonstrating dose-dependent reductions in body weight mediated through GLP-1 receptor-driven appetite suppression and delayed gastric emptying. Cardiovascular outcome research (SUSTAIN-6, FLOW) has documented effects on major adverse cardiovascular events and renal endpoints, expanding the research scope beyond glycaemic control. Emerging pre-clinical work explores CNS-level mechanisms including reward circuitry modulation relevant to addictive behaviour models. Peptides of China supplies research-grade semaglutide as lyophilized powder in sealed vials. Purity is verified at ≥98% by HPLC and confirmed by mass spectrometry. Every batch is tested by the manufacturer for purity and concentration as part of routine quality control. Minimum order quantities are available on request. This compound is supplied strictly for laboratory research use; it is not approved for human administration.

Profile

Available Variants

Name Strength Pack Size Purity Availability
Semaglutide 2 mg 10 vials — In Stock
Semaglutide 5 mg 10 vials — In Stock
Semaglutide 5 mg 10 vials ≥98% In Stock
Semaglutide 10 mg 10 vials — In Stock
Semaglutide 10 mg 10 vials ≥98% In Stock
Semaglutide 15 mg 10 vials — In Stock
Semaglutide 15 mg 10 vials ≥98% In Stock
Semaglutide 20 mg 10 vials — In Stock
Semaglutide 20 mg 10 vials ≥98% In Stock
Semaglutide 30 mg 10 vials ≥98% In Stock

Specification Highlights

Research Areas

Obesity & Energy Homeostasis Semaglutide has been investigated in rodent models of high-fat diet-induced obesity and in clinical trials. Preclinical work demonstrates that GLP-1 receptor activation in the hypothalamus and brainstem reduces food intake via effects on POMC/AgRP neurons and the nucleus tractus solitarius. Human STEP trials documented mean body weight reductions of 14–17% at doses of 2.4 mg/week, establishing semaglutide as a benchmark compound for obesity pharmacology research. Type 2 Diabetes & Insulin Secretion As a GLP-1 receptor agonist, semaglutide potentiates glucose-dependent insulin secretion from pancreatic beta-cells while suppressing glucagon from alpha-cells. Preclinical models of T2D (db/db, HFD/STZ mice) show improved beta-cell function and glycaemic parameters. The glucose-dependent mechanism means insulin secretion is amplified only in the presence of elevated glucose — a feature studied in insulinoma cell line models and isolated islet preparations. Cardiovascular & Renal Outcomes The SUSTAIN-6 and SELECT trials identified significant reductions in major adverse cardiovascular events (MACE) and cardiovascular mortality in subjects with established cardiovascular disease. The FLOW trial extended these observations to renal endpoints including composite kidney disease progression. Preclinical work in atherosclerosis models (ApoE⁻/⁻ mice) suggests GLP-1R-mediated anti-inflammatory effects on vascular macrophages as a potential mechanism. This area remains a high-priority research focus given the overlap of metabolic and cardiovascular disease. Neurological & Addiction Models GLP-1 receptors are expressed in reward circuits including the ventral tegmental area (VTA) and nucleus accumbens. Preclinical rodent studies report that semaglutide and other GLP-1R agonists attenuate operant responding for alcohol, nicotine, and high-fat food. This has stimulated research into potential neurobiological mechanisms of compulsive consumption and executive function. Several investigator-initiated studies have translated these findings into early-phase human trials for alcohol use disorder. ## Sourcing Semaglutide From China

Semaglutide is available through our platform as a china peptide sourced directly from an established Chinese manufacturer. Three points define how we handle it:

  • Factory-direct, not trader-sourced. We confirm availability and specification with the manufacturer before the order is confirmed. There is no intermediary resale of unknown-origin vials in this catalog.
  • Specification before shipment. The purity and concentration specification shown on this page is the manufacturer’s batch specification. Product-specific quality-control information travels with the order.
  • Research-use discipline. Like every listing in our catalog, Semaglutide is supplied for laboratory research use only, under strict research-use terms.

For buyers comparing chinese peptides suppliers, the practical test is whether the seller can name the manufacturer and show the batch documentation. We work the other way around: the manufacturer and the documentation are the offer. Browse the full catalog or see how sourcing works.

Frequently Asked Questions

How does research-grade semaglutide differ from pharmaceutical formulations?

Research-grade semaglutide supplied as lyophilized powder is the same amino acid sequence as pharmaceutical products, but is manufactured in peptide synthesis facilities rather than pharmaceutical GMP plants. It lacks excipients (phosphate buffer, propylene glycol, phenol) present in injectable pen formulations. It is intended for laboratory reconstitution and in vitro or in vivo research use — not for clinical or human administration.

What is the recommended storage for semaglutide lyophilized powder?

Lyophilized semaglutide should be stored at -20°C and protected from light and moisture. Once reconstituted in sterile bacteriostatic water or PBS, solutions are typically stable for 28 days at 2–8°C. Avoid repeated freeze-thaw cycles of reconstituted solution, as peptide aggregation may occur.

What analytical methods are used to verify semaglutide purity?

Purity is confirmed by reverse-phase HPLC (RP-HPLC) with UV detection at 214 nm, which separates the parent peptide from deletion sequences and synthesis byproducts. Identity is confirmed by electrospray ionisation mass spectrometry (ESI-MS) matching the theoretical monoisotopic mass. Certificates of Analysis are provided with each batch.

What minimum order quantities are available for wholesale?

Peptides of China operates on a B2B wholesale model. Minimum order quantities, pricing tiers, and volume discounts are provided upon request after account verification. Contact us through the request form or the Contact page for a formal quote.

Research use only. This product is a research compound intended for laboratory research purposes. It is not for human or veterinary use, and is not a medicine, dietary supplement, or cosmetic.

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