Research & Standards
Reproducible reagents. Traceable data.
The single most common source of variability in peptide research is the reagent. We designed our supply and QA process around that fact.
Certificate of Analysis lookup
Verify a lot number
Every released batch is searchable. Enter a lot number (e.g. PPS-2026-041), product name, or slug.
Testing Protocol
- 01IdentityMALDI-TOF mass spectrometry confirms molecular weight against expected mass.
- 02PurityReverse-phase HPLC quantifies purity; lots below 99% (or 98% where noted) are rejected.
- 03Endotoxin (when applicable)LAL testing where relevant to the research application.
- 04Water contentKarl Fischer titration to confirm lyophilisation.
- 05Visual & sterilitySealed vial inspection under laminar flow conditions.
Handling recommendations
Storage of lyophilised peptides
Store sealed vials at −20°C. Protect from light and moisture.
Reconstitution
Reconstitute in bacteriostatic or sterile water immediately before use.
Reconstituted storage
Refrigerate at 2–8°C; use within manufacturer-recommended window.
Freeze–thaw
Avoid repeated freeze–thaw cycles; aliquot on first reconstitution.