ED50: <0.1 ng/ml, as determined by a cell proliferation assay using IL-6-dependent murine 7TD1 cells, corresponding to a specific activity of >1.0 × 10,000,000 IU/mg.
Purity
>97% as determined by SDS-PAGE and HPLC.
Product Form
Lyophilized
Concentration
Reconstitution dependent.
Formulation
Lyophilized from Phosphate Buffered Saline, pH 7.4.
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.