Buy Tesamorelin UK — What a 44-Residue Record Must Show
Tesamorelin is a 44-residue GRF analogue, and for a peptide this large identity confirmation is the whole conversation — a mass-spec identity check on the full sequence is what separates a documented batch from a guess.
Last updated: 2026-08-21 · By: Index Peptides technical team
1. Identity confirmation is non-negotiable
Tesamorelin is CAS 218949-48-5, a 44-residue analogue of growth hormone releasing factor (GRF 1-44) with a molecular weight of approximately 5135.8 g/mol. LC-MS identity confirmation — expected versus detected mass — is the check that the full-length sequence is actually present.
2. The COA belongs to the batch you receive
The lot number on the vial must match the lot on the certificate, and the certificate should be checkable independently — enter the lot number on a public batch-verification page and the record comes back with the purity, identity and test date for that specific batch.
3. The paperwork is the product
Tesamorelin is supplied strictly as a research chemical for in-vitro laboratory research. A supplier that publishes a certificate of analysis for the specific batch it ships is operating on a different standard from one that forwards a generic image after payment.
How to order from Index Peptides
Tesamorelin is available as a 10mg vial, with the certificate of analysis published on the product page and every released batch checkable by lot number on the verify page. Order online at checkout, or request an invoice for lab and institutional orders.
Frequently asked questions
What should a tesamorelin COA show?
The batch/lot number, HPLC purity, LC-MS identity confirmation of the full sequence, the testing lab and the test date — matched to the vial you receive.
What is the CAS number for tesamorelin?
218949-48-5, with a molecular weight of approximately 5135.8 g/mol.
Who can buy tesamorelin from Index Peptides?
Index Peptides supplies tesamorelin exclusively to qualified researchers and licensed laboratories, for in-vitro research only. It is not for human or veterinary use.
References
Research use only. Not for human or animal consumption.