Quality & certificates of analysis

Every Pepcore research peptide is supplied at ≥99% purity by HPLC, and each vial carries a batch number. For every batch we hold a certificate of analysis (CoA) with the HPLC purity result and a mass-spectrometry (MS) check that the molecular weight matches the expected peptide.

How to get the certificate for your batch

Send us the product name and the batch number printed on your vial – or your order number – by email to info@pepcore.net, on WhatsApp or on Telegram. We reply with the CoA for that batch, usually the same business day.

What the tests show

• HPLC purity – the share of the detected peptide material that is the target peptide. 99% means peptide-related impurities make up less than 1%.
• Mass spectrometry – confirms the identity of the compound by its molecular weight.
• Batch number – links your vial to its production lot and its test results.

HPLC does not measure the milligram content of a vial, sterility or endotoxins; our peptide glossary explains these terms.

Storage and transport

Lyophilized peptides are stable during transport. We dispatch from the Netherlands in protective, tracked packaging; store vials at −20 °C on arrival – see our stability guide.

All products are sold for laboratory research only and are not intended for human or veterinary use.