Human Interleukin-21 Recombinant

The lyophilized protein is stable for at least 2 years from date of receipt at -20 °C.<br> Upon reconstitution, this cytokine can be stored in working aliquots at 2 degree - 8 °C for one month, or at -20 °C for six months, with a carrier protein without detectable loss of activity. <br> <br> Avoid repeated freeze/thaw cycles.