来源:Escherichia coli. 纯度:> 95 % by SDS-PAGE and HPLC analyses. 物理性状:Sterile Filtered White lyophilized (freeze-dried) powder. 组成:Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4. 内毒素:Less than 1EU/μg of rMuIL-2 as determined by LAL method. 储存:This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles