STABILITY // INVENTORY CONTROL
Storage conditions are material- and batch-specific. Follow the current batch documentation and validated laboratory SOP first. When no more-specific instruction has been published, keep sealed lyophilized material cold, dry, protected from light, and under documented control.
No universal temperature claim: AFL does not publish one temperature or stability period for every compound. Exact limits should come from the applicable batch documentation or a validated method.
Storage by Stage
| Stage | Baseline control | Record to retain |
|---|---|---|
| Receipt | Inspect promptly and move the shipment into the designated controlled environment without unnecessary delay. | Receipt date, condition, lot, quantity, storage location. |
| Sealed lyophilized vial | Keep sealed in the original container, cold, dry, upright when practical, and protected from direct light and repeated temperature cycling. | Temperature log and inventory movement. |
| Opened or prepared material | Use only a validated preparation and stability procedure. Container compatibility, concentration, solvent, sterility requirements, and hold time can change stability. | Preparation record, concentration, date, operator, storage condition, expiry or discard time. |
| Aliquots | Use compatible, clearly labeled containers and minimize repeated opening or freeze-thaw cycling where the validated procedure calls for frozen storage. | Aliquot count, identifiers, preparation and use dates. |
| Temperature excursion | Quarantine the affected material. Do not assume it remains suitable based only on appearance. | Duration, observed range, affected lots, disposition decision. |
Receiving Checklist
- Confirm the package and vial are intact.
- Match the compound, presentation, and lot to the order record.
- Note any cold-chain indicator or packaging issue before discarding materials.
- Photograph damage or suspected excursion evidence.
- Quarantine questionable material and contact AFL before use.
Inventory Practices
First-expiring, first-out
Rotate inventory by the documented retest, expiry, or internal review date rather than by memory.
Separate lots
Do not combine or relabel lots in a way that breaks traceability to the original batch record.
Limit access
Keep storage controlled and accessible only to personnel who can maintain the required records and conditions.
Questions after an excursion? Send the compound, lot, observed condition, duration, and photographs through the Contact page. AFL cannot certify stability without supporting batch-specific evidence.