Tesamorelin
Synthetic 44-residue peptide supplied by Loti Labs as lyophilized powder for laboratory research. Specifications, the current certificate of analysis and the full batch history, all on one page.
Tesamorelin 2mg. For laboratory, analytical and research use only.Compound specifications
| Compound | Tesamorelin |
| Class | Synthetic 44-residue peptide |
| Molecular formula | C221H366N72O67S |
| Molecular weight | 5135.6 g/mol |
| CAS number | 218949-48-5 |
| Form | Lyophilized powder, sealed vial |
| Formats | 2 mg vial · 10 mg vial |
Latest certificates of analysis
2 mg vial
10 mg vial
Also in these research blends
Tesamorelin 10mg / Ipamorelin 2mg (blend)
Batch history
| Test date | Format | Batch | Purity | Identity | Laboratory | |
|---|---|---|---|---|---|---|
| Jul 27, 2026 | 10 mg vial | LL-TS10-726 | 99.72% | Conforms | Bioviridian | Certificate |
| May 17, 2026 | 2 mg vial | LL-TS2-0526 | 99.9% | Conforms | Bioviridian | Certificate |
How every batch is tested
Every Loti Labs batch is tested by an independent, U.S.-based third-party laboratory. Purity is measured by HPLC and identity is confirmed by mass spectrometry. Where a certificate includes an endotoxin screen, the result is shown above. Each certificate is archived permanently under its batch number, so earlier batches stay on record after a new one arrives. Search the complete COA archive.
Questions researchers ask
What purity is the current Tesamorelin batch?
2 mg vial: batch LL-TS2-0526 tested at 99.9% purity by RP-HPLC on May 17, 2026, identity confirmed by mass spectrometry. 10 mg vial: batch LL-TS10-726 tested at 99.72% purity by RP-HPLC on Jul 27, 2026, identity confirmed by mass spectrometry.
What is the molecular formula and weight of Tesamorelin?
Tesamorelin has molecular formula C221H366N72O67S and a molecular weight of 5135.6 g/mol, CAS 218949-48-5.
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 Tesamorelin from Loti Labs intended for?
Loti Labs supplies Tesamorelin strictly for laboratory, analytical and research use. It is not for human or veterinary use, and it is not a drug, food or cosmetic.
Available to registered researchers
Ordering opens after you sign in or create a free research account.
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.