THIRD-PARTY TESTED · COA AVAILABLE◆FREE U.S. SHIPPING ON ORDERS $200+◆SHIPS IN 24–48 BUSINESS HOURS◆DISCREET, PROTECTIVE PACKAGING◆RESEARCH USE ONLY◆THIRD-PARTY TESTED · COA AVAILABLE◆FREE U.S. SHIPPING ON ORDERS $200+◆SHIPS IN 24–48 BUSINESS HOURS◆DISCREET, PROTECTIVE PACKAGING◆RESEARCH USE ONLY◆
Semaglutide 20mg, a synthetic 31-aa GLP-1 receptor agonist for in-vitro research. Lipidated for stability, third-party tested, COA available. Research use only.
Tier
Quantity
Discount
Basic
3-4 units
5% off
Most Popular POPULAR
5-9 units
10% off
Max Savings
10+ units
12% off
Bulk discounts apply automatically in your cart.
Third-Party TestedCertificate of Analysis published
COA-Backed Quality — if a delivered item is damaged, defective, or incorrect, contact us within 48 hours and we'll make it right per our Refund & Return Policy.
For Research Use Only. Not intended for human consumption, veterinary use, or any clinical application, sold exclusively for laboratory and in-vitro research. By purchasing, you confirm you are a qualified researcher.
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Category
Peptides
Purity
High purity (research grade)
Storage
Refrigerate at 2–8°C
Form
Lyophilized powder
Shipping
Ships in 24–48 business hours · discreet
Overview
About Semaglutide 20mg
Semaglutide 20mg is a synthetic 31-amino-acid polypeptide engineered as a glucagon-like peptide-1 (GLP-1) receptor agonist, supplied by Echo Peptides strictly for in-vitro and preclinical laboratory research. As a reference GLP-1 analog, it serves as a stable molecular tool for investigators probing incretin receptor signaling in cell-culture and other controlled experimental systems.
Its structure carries deliberate modifications that distinguish it from native GLP-1: an aminoisobutyric acid (Aib) residue at position 8 confers resistance to DPP-4 cleavage, an arginine substitution at position 34 refines receptor selectivity, and a C18 fatty diacid chain enables albumin binding. Together these features extend the peptide's stability in research models, making it a durable reference compound for studying receptor-mediated pathways over prolonged in-vitro time courses.
Key research areas
Glucose-dependent insulin secretion mechanisms in cell-based models
Glucagon suppression pathways
Gastric emptying and appetite regulation research models
Structural modifications: Aib at position 8 (DPP-4 resistance), Arg at position 34, C18 fatty diacid chain for albumin binding (lipidated for extended half-life in laboratory settings)
Purity: High purity
Identity and purity: Third-party tested; a Certificate of Analysis is available
Strictly for in-vitro laboratory research use only. Not for human consumption, veterinary, diagnostic, or therapeutic applications.
Regulatory notice. Not evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease, and not for human or veterinary use. Sold exclusively for laboratory and in-vitro research by qualified professionals — always follow proper laboratory safety protocols.
This vial
Working with the 20mg vial
This vial contains 20 mg of lyophilized material. Reconstitution does not change that mass — it changes the volume it occupies — so the concentration you end up with is set entirely by how much diluent you add.
Diluent added
Concentration
Concentration
Molarity
1 mL
20 mg/mL
20000 µg/mL
4.86 mM
2 mL
10 mg/mL
10000 µg/mL
2.43 mM
3 mL
6.67 mg/mL
6667 µg/mL
1.62 mM
5 mL
4 mg/mL
4000 µg/mL
0.972 mM
Molarity uses this compound's verified molecular weight of 4113.6 g/mol.
Available sizes of Semaglutide
Each strength is stocked and documented separately. Cost per mg is shown so the sizes can be compared directly.
Figures are unit conversions for handling reference material in vitro. Nothing here is a dose or a protocol.
Frequently Asked Questions
What is Semaglutide 20mg as a research compound?
It is a synthetic 31-amino-acid polypeptide that acts as a glucagon-like peptide-1 (GLP-1) receptor agonist. Echo Peptides supplies it as a lipidated reference analog for in-vitro and preclinical laboratory work, where it functions as a stable molecular tool for investigating incretin receptor signaling. It is not intended for human, veterinary, diagnostic, or therapeutic use.
What do laboratories study Semaglutide 20mg for?
Researchers use it in cell-culture and preclinical models to examine glucose-dependent insulin secretion mechanisms, glucagon suppression pathways, gastric emptying and appetite regulation models, and glycemic control within broader metabolic research. All applications are confined to controlled in-vitro experimental systems.
How is the peptide supplied, and is a Certificate of Analysis available?
Semaglutide 20mg ships as a freeze-dried (lyophilized) powder in a sterile vial, at high purity. It is third-party tested for identity and purity, and a Certificate of Analysis is available. The C18 fatty diacid modification supports extended stability in laboratory research settings.
