Quality & testing
Analytical methodology
Every batch is tested by an independent analytical laboratory before release. Results are recorded against a batch number that stays with the vial, the certificate and your order record.
High-performance liquid chromatography (HPLC)
Reverse-phase HPLC quantifies the main peak against related impurities. A purity figure of ≥99% is required for release; the chromatogram is attached to the batch COA.
Mass spectrometry (MS)
Identity is confirmed by comparing the observed mass against the expected molecular weight of the target sequence.
Endotoxin and sterility
Where applicable to the preparation, bacterial endotoxin testing and sterility checks are performed and recorded on the certificate.
Appearance and residual solvent
Visual inspection of the lyophilised cake and checks for residual solvent and water content before sealing.
Batch traceability
Each vial carries a batch number in the format UPL-0000-A. That number links the vial to its synthesis record, its independent test results and the certificate of analysis issued with your order.