Batch Verification Report
Batch verification and analytical summary for Tesamorelin (synthetic GHRH analogue research peptide).
Filler-free lyophilised peptide powder · No mannitol or bulking agents
Date of analysis: 30 Oct 2025
Recommended retest date: 29 Oct 2027
Amount: As specified on Aventris product label
Analytical Results
The following analytical data was obtained from manufacturer testing of the source batch. Aventris has independently verified this data against our quality specifications. This Batch Verification Report summarises our review findings for Tesamorelin.
| Test | Method | Specification | Result |
|---|---|---|---|
| Appearance | Visual | White powder | Conforms |
| Solubility (water) | Solubility check | ≥ 5 mg/ml | Conforms |
| Identity (molecular weight) | ESI-MS | 5135.78 Da | Conforms |
| Purity | HPLC | ≥ 98.0% | 98.83% |
| Peptide content | Nitrogen analysis (N%) | ≥ 80.0% | 88.57% |
| Water content | Karl Fischer | ≤ 7.0% | 5.13% |
| Acetate content | HPLC | < 10.0% | 5.78% |
| Mass balance | Calculation | 95.0 – 105.0% | 99.48% |
| Bacterial endotoxins | Pharmacopeial method | < 10 EU/mg | Conforms |
| Total aerobic microbial count | Plate count | ≤ 100 cfu/g | Conforms |
| Total yeast & mold count | Plate count | ≤ 100 cfu/g | Conforms |
| Amino Acid | Specification | Result |
|---|---|---|
| Asp | 3.2 – 4.8 | 3.33 |
| Tyr | 1.6 – 2.4 | 2.39 |
| Lys | 1.6 – 2.4 | 1.79 |
| Ile | 1.6 – 2.4 | 2.18 |
| Leu | 4.0 – 6.0 | 4.95 |
| Val | 0.8 – 1.2 | 0.94 |
| Thr | 0.8 – 1.2 | 1.00 |
| Phe | 0.8 – 1.2 | 0.98 |
| Ser | 3.2 – 4.8 | 4.32 |
| Ala | 4.0 – 6.0 | 4.69 |
| Gly | 2.4 – 3.6 | 3.05 |
| Glu | 5.6 – 8.4 | 6.93 |
| Met | 0.8 – 1.2 | 1.76 |
| Arg | 4.8 – 7.2 | 6.51 |
Storage & Handling
Storage Conditions:
- Store at -20°C or below in original sealed vial
- Protect from light and moisture
- Do not freeze-thaw repeatedly once reconstituted
- Recommended shelf life: 24 months when stored properly
General Laboratory Handling:
- Handle using standard laboratory safety practices
- Wear appropriate personal protective equipment (gloves, lab coat, safety glasses)
- Use in well-ventilated area or fume hood
- Avoid inhalation, ingestion, or skin/eye contact
- Wash hands thoroughly after handling
Reconstitution:
Reconstitution methods, diluents, and working concentrations must be determined by qualified researchers
according to their specific experimental protocols and institutional guidelines. Aventris does not provide
reconstitution instructions.
Source Batch:
- Tesamorelin — Lot P250919-A018
Peptide Sequence:
Tesamorelin (44 AA):
trans-3-Hexenoic acid-HADAIFTNSY RKVLGQLSAR KLLQDIMSR QQGESNQERG ARARL-NH₂
Molecular Identity:
- Tesamorelin: C₂₂₁H₃₆₆N₇₂O₆₇S₁ — MW 5135.78 Da — CAS 218949-48-5
Additional Documentation:
For questions about this batch or to request additional information, contact
[email protected]
Note: Any deviations from the above specification, if present, will be explicitly noted. In the absence of such notes, all parameters conform to the stated limits.