ED50: 0.05-0.4 ng/ml, as determined by measuring the dose-dependent proliferation of human TF-1 cells and CD23 expression. A concentration range of 0.1-10.0 ng/ml is effective for most in vitro applications.
Purity
>98% as determined by SDS-PAGE.
Product Form
Lyophilized
Concentration
Reconstitution dependent.
Formulation
Lyophilized from 20 mM Phosphate Buffered Saline, pH 6, and carrier free.
Storage
Shipped at ambient temperature. Lyophilized: Short term (3 weeks) store at 25°C. Long term store desiccated below -18°C. Reconstituted: Short term (2-7 days) store at 4°C. Long term store below -18°C. Avoid freeze/thaw cycles.
