The biological activity determined by a chemotaxis bioassay using human lymphocytes is 0.1-1.0 ng/ml.
Purity
>96% as determined by RP-HPLC and SDS-PAGE.
Product Form
Lyophilized
Concentration
Reconstitution dependent.
Formulation
Lyophilized from 20 mM Phosphate Buffered Saline, pH 7, with 500 mM Sodium Chloride.
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.
