Evidence review · Published July 22, 2026 · Compliance review August 20, 2026

Semaglutide identity and analytical reference

Semaglutide is a synthetic, acylated peptide identified by CAS 910463-68-2. This page is limited to nomenclature, reported structural features, and the distinction between a literature identity and lot-specific analytical documentation.

Scope boundary: this page documents nomenclature, structural reference information, and analytical-documentation limits. The Pep Labs catalog material is offered only for lawful nonclinical laboratory research and is not for human or veterinary use.

Semaglutide material identity

The literature describes semaglutide as a modified peptide containing Aib at position 8, Arg at position 34, and a fatty-diacid modification at Lys26. A literature name or CAS registry number identifies a substance record; it does not verify an independently supplied batch.

What the literature identity establishes

The cited papers document the authors' molecular design and defined study material. They are references for nomenclature and structure, not batch reports for catalog material.

What verifies a supplied lot

A lot-linked report can document the sample identifier, analytical method, test date, and reported results. The report identifier should match the material in hand, and the receiving laboratory remains responsible for fit-for-purpose verification.

Primary sources

  1. Lau et al., Journal of Medicinal Chemistry (2015), DOI 10.1021/acs.jmedchem.5b00726 — molecular design and structural modifications of the study material.
  2. Zhang et al., Cell Reports (2021), DOI 10.1016/j.celrep.2021.109374 — structure of semaglutide in a defined experimental complex.

Literature and product documentation are different

A publication describes a study. A batch-specific Certificate of Analysis documents characteristics of a supplied research material. One does not substitute for the other.

Browse the COA library · Read the research-use policy

Prepared by The Pep Labs Research Editorial Team. This identity reference contains no preparation, dosing, administration, or human-use guidance.