Verified — all release criteria met
releasedCurrent lot
Certificate of analysis
Tesamorelin
Lot CP-TESAMOS2-2607A · 5 mg
99.71 %
HPLC purity
Spec ≥ 98.0 %
90.7 %
Net peptide content
By amino acid analysis
< 0.17
Endotoxin (EU/mg)
Spec < 5.0 EU/mg
Provenance
- Testing laboratory
- Janoshik Analytical
- Accreditation
- ISO/IEC 17025:2017
- Country of synthesis
- United States
- Manufactured
- Jul 13, 2026
- Release tested
- Jul 22, 2026 (2 months ago)
- Retest date
- Jul 12, 2028
- CAS number
- 218949-48-5
- Molecular formula
- C221H366N72O67S
- Theoretical mass
- 5135.90 Da
- Observed mass (LC-MS)
- 5135.84 Da (Δ 0.06 Da)
Assay results
Every line the release panel ran for this lot, with the method, the acceptance criterion and the measured value — not a pass mark alone.
| Method | Parameter | Specification | Result | |
|---|---|---|---|---|
| RP-HPLC (UV 214 nm) | Purity (area %) | ≥ 98.0 % | 99.71 % | Pass |
| LC-MS (ESI+) | Identity — observed mass | 5135.90 ± 1.0 Da | 5135.84 Da | Pass |
| Amino acid analysis | Net peptide content | ≥ 80.0 % | 90.7 % | Pass |
| Karl Fischer | Water content | ≤ 8.0 % | 5.07 % | Pass |
| Ion chromatography | Residual TFA | ≤ 1.0 % | 0.16 % | Pass |
| LAL kinetic chromogenic | Bacterial endotoxin | < 5.0 EU/mg | < 0.17 EU/mg | Pass |
| USP <71> membrane filtration | Sterility | No growth | No growth | Pass |
| Visual / USP <790> | Appearance | White to off-white cake, free of visible particulates | Conforms | Pass |
Handling for this lot
- Appearance
- White lyophilised cake
- Storage
- -20 °C lyophilised. Reconstituted material is comparatively fragile — use within 14 days at 2–8 °C.
- Reconstitution
- Swirl gently. As a 44-mer this peptide is more shear-sensitive than the short secretagogues.
Other lots of Tesamorelin
Compare batch to batch. Consistency across lots is a stronger signal than any single certificate.
Research use only. This certificate describes material supplied strictly for laboratory research. It is not a drug, food, cosmetic or medical device, has not been evaluated by the FDA, and is not intended for human or veterinary administration of any kind.