Tesamorelin 10mg | Lyophilised Powder
Tesamorelin is a fully synthetic 44-residue peptide amide corresponding to the GHRH(1–44) sequence, distinguished by a trans-3-hexenoyl group acylated onto the α-amino group of the N-terminal tyrosine. That lipophilic N-terminal modification is the structural feature defining it as a discrete entity within the GHRH analogue family, and it's the feature most often referenced in analytical method development and stability profiling.
At 5136 g/mol across 44 residues, this is the largest peptide on our catalogue. Supplied as a lyophilised powder in a sealed single-use vial.
Chemical identity
| Compound | Tesamorelin |
| CAS number | 218949-48-5 |
| Molecular formula | C₂₂₁H₃₆₆N₇₂O₆₇S |
| Molecular weight | 5135.87 g/mol |
| Monoisotopic mass | 5132.7166 Da |
| Residue count | 44, C-terminal amide |
| N-terminal modification | trans-3-hexenoyl on Tyr1 |
| PubChem CID | 16137828 |
| InChIKey | QBEPNUQJQWDYKU-BMGKTWPMSA-N |
| Also indexed as | TH9507, (trans-3-hexenoyl)hGRF(1–44)NH₂ |
Product specification
| Nominal fill | 10mg |
| Purity | ≥99% by HPLC |
| Identity confirmation | Mass spectrometry |
| Physical form | Lyophilised powder |
| Appearance | White to off-white |
| Documentation | Lot-specific certificate of analysis |
Storage and handling
Store sealed at −20°C, protected from light and moisture. Equilibrate to ambient temperature before opening. Larger peptides are generally more sensitive to freeze-thaw cycling than short chains — avoid repeated temperature excursions. Refer to the lot COA for batch-specific data.
Supply and despatch
UK stock. Same-day despatch before 3pm, Royal Mail 24 Tracked.
FAQ
What is the CAS number for Tesamorelin? 218949-48-5.
What does TH9507 refer to? The original development code for tesamorelin. Both designations appear across the literature and supplier catalogues.
What makes tesamorelin structurally distinct from GHRH? A trans-3-hexenoyl group acylated onto the N-terminal tyrosine of the 44-residue GHRH sequence.
What is the molecular weight? 5135.87 g/mol average; 5132.7166 Da monoisotopic.
Package Includes
1 × Tesamorelin 10mg vial