Determined by its ability to chemoattract human monocytes using a concentration range of 5-10 ng/ml, corresponding to a specific activity of 100,000-200,000U/mg.
Purity
>97% as determined by SDS-PAGE.
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.