<0.01 ng/ml, corresponding to a specific activity of 100,000,000 IU/mg.
Unit Definition
50 units is defined as the concentration of mouse LIF in 1 mL of tissue culture medium that induces the differentiation of 50% of M1 colonies.
Purity
>95% as determined by RP-HPLC and SDS-PAGE.
Product Form
Lyophilized
Concentration
1 mg/ml
Formulation
Lyophilized from 20 mM Phosphate Buffered Saline, pH 7.4, with 0.02% Tween 20.
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, it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid freeze/thaw cycles.
