For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1 % HSA or 0.1% BSA) and store in working aliquots at -20 degree C to -80 degree C. Lyophilized MIP-4 although stable at room temperature for 3 weeks, should be stored desiccated below -20 degree C. Upon reconstitution MIP-4 can be stored at 4 degree C between 2-7 days and for future use below -20 degree C.