Quality & testing
How batches are tested, and the reports published for the batches on offer.
Purity
HPLC
Reversed‑phase HPLC with UV detection; area‑percent purity against the specification.
Identity
Mass spectrometry
Observed mass compared with the theoretical mass of the sequence.
Residuals
Water content
Water by Karl Fischer titration where reported by the laboratory.
Verification
Lab verification key
Independent reports carry a key that can be checked on the laboratory's own website.
Look up a batch report
Enter the lot/batch number printed on your kit, or a product name.
Published reports
Reports are added per batch. Where an independent report is not yet available the manufacturer's QC certificate is shown and labelled as such.
GonadorelinBatch PB20260417
Laboratory: Manufacturer QC (HPLC / MS)
Purity: 99.1%
Identity: 1182.3 Da (confirmed)
Manufacturer batch certificate. Independent laboratory reports are added per batch as they are received.
How to read a report
Purity is the share of peptide‑related material that is the named peptide. Identity confirms the mass matches the sequence. Neither says anything about suitability for any use other than laboratory research.