Product quality and batch documentation policy

1. Batch identity and traceability

Every vial carries a batch number printed on the label. That number links the vial to its analytical records, packing date and dispatch record, so any question about a shipment can be traced back to the batch.

2. Certificate of analysis

A certificate of analysis is available for each batch and typically reports identity by mass spectrometry, purity by HPLC, appearance, net peptide content where applicable, and the test date. Where testing is performed by an independent laboratory, the laboratory is named on the certificate.

3. Specification and tolerances

Purity figures shown on product pages are the minimum specification for the product. The governing figure for the material you hold is the one printed on the certificate for your batch.

4. Storage, stability and reconstitution

• Store lyophilised material as stated on the label, protected from light and moisture.
• Allow vials to reach room temperature before opening to avoid condensation.
• Reconstitute with an appropriate solvent and aliquot to avoid repeated freeze–thaw cycles.
• Stability after reconstitution is the responsibility of the receiving laboratory.

5. What quality documentation does not mean

A certificate of analysis confirms analytical characteristics of a research chemical. It is not a release certificate for medicinal use, is not issued under GMP, and never implies that the material is safe or suitable for human or veterinary administration.

6. Requesting documentation

Quote your order and batch number to request a certificate or safety data sheet. We retain batch records for the period required by law and for a minimum of five years.