Reference-grade chemical sequences are sensitive to temperature and moisture. Lyophilised material is typically stored frozen and protected from light; once reconstituted in the lab, it is handled cold and used within the working window appropriate to the study.
Good practice starts at receiving: inspect the shipment, confirm the batch against its COA, and move material to controlled storage promptly. These notes are general laboratory-handling guidance for research use only and are not instructions for any human or animal application.