The testing pipeline
1. Goods-in quarantine
New lots are logged, weighed and quarantined. Nothing is listed as in stock until analysis is complete.
2. Independent analysis
- HPLC-UV for purity, reported as an area percentage
- ESI-MS or MALDI-TOF for molecular identity confirmation
- Karl Fischer or loss-on-drying for residual moisture
- Bacterial endotoxin screening where the application requires it
3. Release or reject
Lots that fall short of specification are rejected outright and returned to the synthesis partner. We do not discount out-of-spec material.
Reading your certificate
Your COA lists the lot number, the compound, the measured purity, the analysis date and the testing laboratory. Cross-check the lot number printed on your vial label against the certificate shown on the product page — they should match exactly.
Storage and stability
- Lyophilised powder: stable for 24 months at -20°C, protected from light
- Short-term transit and handling at ambient temperature is acceptable for lyophilised material
- Reconstituted solution: refrigerate at 2-8°C and use within the window stated on the product page
- Avoid repeated freeze-thaw cycles; aliquot before freezing