SemaSemaglutide
Synthetic acylated peptide. Loti Labs supplies it as lyophilized powder in 5 mg vials, for laboratory research.
Aib = α-aminoisobutyric acid (residue 2). K* = Lys20, whose side chain carries a C18 fatty diacid through a linker.
Specifications
Reference dataFormula, molecular weight and CAS number are reference values for the compound, not measurements of a specific batch.
- Compound
- Semaglutide
- Class
- Synthetic acylated peptide
- Molecular formula
- C187H291N45O59
- Physical presentation
- Lyophilized powder, sealed vial
- Formats
- 5 mg vial
- Sequence
- H[Aib]EGTFTSDVSSYLEGQAA[Lys(acyl)]EFIAWLVRGRG-OH
Current certificates of analysis
TipMatch the batch number on your vial label to the certificate. Click any certificate to open it full size.
5 mg vial
Batch LL-SEM-926 tested at >99.9% purity by HPLC-UV/MS. Identity was confirmed by mass spectrometry. No endotoxin was detected.
- Batch
- LL-SEM-926
- Tested
- Oct 12, 2026
- Laboratory
- Krause Analytical
Batch history
RecordEvery certificate stays on record under its batch number, even after a newer batch arrives.
| Tested | Format | Batch | Purity | Identity | Laboratory | |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | 5 mg vial | LL-SEM-926 | >99.9% | Confirmed | Krause Analytical | Certificate |
| Jun 29, 2026 | 5 mg vial | LLSEM626 | 99.8% | Not reported | Bioviridian | Certificate |
How every batch is tested
MethodEvery Loti Labs batch goes to an independent, U.S.-based third-party laboratory.
- 1
Sample sent
Samples from the production batch go to the laboratory under the batch number.
- 2
Purity
HPLC separates sample components and can be used to assess chromatographic purity. Determining absolute compound content requires a validated quantitative assay.
- 3
Identity
Mass spectrometry provides evidence supporting compound identity, where reported.
- 4
Archived
The certificate is published and kept for good. Search the archive.
Questions researchers ask
ArchiveEvery certificate we have published is searchable in the COA archive.
What purity is the current Sema (Semaglutide) batch?
5 mg vial: batch LL-SEM-926 tested at >99.9% purity by HPLC-UV/MS on Oct 12, 2026, identity confirmed by mass spectrometry.
What is the molecular formula and weight of Sema (Semaglutide)?
Sema (Semaglutide) has the sequence H[Aib]EGTFTSDVSSYLEGQAA[Lys(acyl)]EFIAWLVRGRG-OH, molecular formula C187H291N45O59 and a molecular weight of 4113.6 g/mol, CAS 910463-68-2.
How do I find the certificate for my vial?
Match the lot number printed on the vial label to the batch column in the history table, or search it in the Loti Labs COA archive. Every certificate is kept permanently under its batch number.
What is Sema (Semaglutide) from Loti Labs intended for?
Loti Labs supplies Sema (Semaglutide) strictly for laboratory, analytical and research use. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
Further reading on Sema (Semaglutide)
- VK2735: Dual GIP/GLP-1 Receptor Agonist Research Profile and Oral Formulation Science
- Berobenatide: Monthly-Interval GLP-1 Receptor Agonist Research and Extended Half-Life Design
- Orforglipron: The First Oral Non-Peptide GLP-1 Receptor Agonist in Research
- Peptide Conjugation and PEGylation: Extending Half-Life in Research Applications
- Oral Peptide Delivery: Bioavailability Barriers, Permeation Enhancer Research & Emerging Laboratory Strategies
Related compound profiles
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Research use only. This page is provided for laboratory, analytical and research reference. Products are not drugs, foods or cosmetics and are not for human or veterinary use.