Tesamorelin — Compound Overview
A researcher-focused overview of tesamorelin: what the compound is, its chemistry, how it appears in the published literature, and how Index Peptides documents each batch.
Last updated: 2026-08-21 · By: Index Peptides technical team
Key facts about Tesamorelin
| Compound | Tesamorelin |
|---|---|
| Intended use | In-vitro laboratory research only |
What is tesamorelin?
Tesamorelin is a synthetic 44-residue analogue of growth hormone releasing factor (GRF 1-44). The material is produced by solid-phase peptide synthesis and supplied as a lyophilised powder.
Tesamorelin is classified as a research chemical in this context, and Index Peptides supplies it strictly for in-vitro laboratory research.
Tesamorelin in the research literature
Tesamorelin appears in the published literature as a growth-hormone-releasing factor analogue. Index Peptides lists it as a technical research material only and takes no position on any application.
Form, handling and storage
Tesamorelin is supplied as a lyophilised (freeze-dried) powder in a sealed vial. Lyophilised peptides are best stored at -20°C, desiccated and protected from light; long-term stability data are batch-specific and recorded against the batch record.
Batch documentation at Index Peptides
Review the published certificate for the exact lot, including the laboratory, report date and analytical results actually reported. HPLC purity alone does not confirm LC-MS identity. Contact us before ordering if a required result is not published.
Frequently asked questions
Who is tesamorelin supplied to?
Index Peptides supplies tesamorelin exclusively to qualified researchers and licensed laboratories, for in-vitro research only. It is not for human or veterinary use.
What is the CAS number for tesamorelin?
218949-48-5, with a molecular weight of approximately 5135.8 g/mol.
How is each batch verified?
Each published batch record shows the reversed-phase HPLC purity result and states when no LC-MS identity result has been published. Records are linked from the product page, and any batch can be checked by lot number on the verify page.
What is the shelf life of Tesamorelin?
As supplied (lyophilised powder in a sealed vial), Tesamorelin is stored at -20C, desiccated and protected from light. Long-term stability is documented per batch on the certificate of analysis; treat the batch record as the authoritative shelf-life reference for that lot.
What is the difference between the sizes?
The difference is the nominal peptide content per vial. Tesamorelin is supplied as 10mg vials. Every format carries the same batch documentation and purity testing.
What does the certificate of analysis show?
Review the published certificate for the exact lot, including the laboratory, report date and analytical results actually reported. HPLC purity alone does not confirm LC-MS identity. Contact us before ordering if a required result is not published.
How does Tesamorelin compare with Ipamorelin?
See our comparison of Tesamorelin vs Ipamorelin: https://indexpeptides.uk/guides/tesamorelin-vs-ipamorelin
References
Research use only. Not for human or animal consumption.