Upon delivery aliquot. Upon reconsitution add a carrier protein (0.1% BSA). Store at -20°C. Aliquot the reconstituted solution and re-lyophilize. The re-lyophilized aliquoted peptide should be stored dry at 4°C, preferably in a desiccator. For long term storage it is recommended to add a carrier protein on reconstitution (0.1% HSA or BSA). Working aliquots stored with a carrier protein are stable for at least 3 months at -20°C to -80°C..