Semaglutide is a synthetic 31-amino-acid polypeptide engineered as a long-acting glucagon-like peptide-1 (GLP-1) receptor agonist, supplied by Echo Peptides as a reference compound for laboratory and in-vitro research. Its backbone incorporates several deliberate modifications: an aminoisobutyric acid (Aib) substitution at position 8 that confers resistance to DPP-4 cleavage, an arginine substitution at position 34, and a C18 fatty diacid chain that promotes albumin binding. Together these structural features give the molecule extended stability in preclinical model systems relative to native GLP-1.

In cell-culture and preclinical settings, researchers use Semaglutide as a tool for probing GLP-1 receptor engagement and the downstream signaling that shapes glucose-dependent insulin secretion, glucagon regulation, and appetite-related pathways. Its lipidated, protease-resistant design makes it a useful comparator when investigators evaluate the pharmacology of incretin-based reference standards in vitro.

Key research areas

  • GLP-1 receptor agonism and receptor-binding characterization in cell-culture models
  • Glucose-dependent insulin secretion mechanisms in preclinical systems
  • Glucagon suppression and counter-regulatory signaling pathways
  • Gastric emptying and appetite-regulation model studies
  • Glycemic control and broader metabolic research in in-vitro assays
  • Structure-activity comparisons of DPP-4-resistant, albumin-binding peptide analogs

Specifications

  • Amount: 10 mg per vial
  • Form: Freeze-dried (lyophilized) powder in a sterile vial
  • Sequence type: Synthetic 31-amino-acid GLP-1 analog
  • Modifications: Aib at position 8 (DPP-4 resistance), Arg at position 34, C18 fatty diacid chain for albumin binding
  • Testing: Third-party tested for identity and purity; a Certificate of Analysis is available
  • Storage: Store lyophilized powder cold and protected from light; keep sealed until reconstitution for use in research

This product is offered strictly for laboratory, in-vitro, and preclinical research use only. It is not intended for human or veterinary use, diagnostic procedures, or any therapeutic application.