Certificate Of Analysis
Product Name IL-4 human,
recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)
Product Number SRP6172
Product Brand SIGMA
 
TEST SPECIFICATION LOT 9C126463 RESULTS
Appearance Report result Lyophilized
Purity by SDS-PAGE ≥95 % >95 %
Endotoxin < 0.1 ng/µg protein by LAL Method < 0.1 ng/ µg
Bioactivity The specific activity was determined by the dose-dependent simulation of the proliferation of human TF-1 cells (human erythroleukemic indicator cell line). ED50 is between 0.1 to 0.5 ng/mL