Why Tesamorelin Stands Out Among GHRH Analogs
Tesamorelin is a 44-amino-acid GHRH analog with a molecular weight of 5135.9 Da, one of the larger synthetic peptides in the metabolic-research class. Its longer sequence makes synthesis and purification more demanding than shorter peptides, which directly affects both cost and the risk of sequence errors.
That length is why mass spec confirmation matters more here than for a short peptide like BPC-157. A wrong residue anywhere in 44 positions still produces a compound close in mass — only a proper MS trace catches it.
Verification and Purity
Research-grade Tesamorelin should come with an HPLC report of ≥98% purity and a mass spectrum confirming the 5135.9 Da molecular weight. Ask for amino-acid analysis as well given the 44-residue length.
- HPLC ≥98%: purity floor for this peptide
- MS at 5135.9 Da: confirms full-length sequence
- Amino Acid Analysis: verifies the 44-residue composition
- Vacuum-sealed: protects the lyophilized powder
FAQ
What is the molecular weight of Tesamorelin?
Tesamorelin has a molecular weight of 5135.9 Da and consists of 44 amino acids.
Why is Tesamorelin more expensive than shorter peptides?
Its 44-amino-acid sequence is harder to synthesize and purify correctly than short peptides, which raises production cost.
How is Tesamorelin stored?
Store lyophilized Tesamorelin at -20°C in a sealed, light-protected vial. Refrigerate after reconstitution.
Important: All products are sold strictly for laboratory and research purposes only — not for human or veterinary use. No medical or dosing guidance is provided.