Storage: Please store the lyophilized antibody at -20°C upon receipt for up to 24 months. For optimal results, use the antibody immediately after reconstitution. Once reconstituted, the antibody is stable for up to three (3) days at 4°C. For longer-term storage up to three (3) months, prepare small aliquots of the reconstituted antibody and freeze at -20°C or -80°C. Repeated freeze-thaw cycles should be strictly avoided.