Recombinant Human Leptin

Recombinant Human Leptin

• CAS Number: 9000-83-3
• Bioactivity: Fully biologically active when compared to standard. The ED50 as determined by a chemotaxis bioassay using human Leptin R transfected BaF3 murine proB cells is less than 2 ng/ml, corresponding to a specific activity of > 5.0 x10⁵ IU/mg.
• Storage Conditions: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 ℃ as supplied.- 1 month, 2 to 8 ℃ under sterile conditions after reconstitution.- 3 months, -20 to -70 ℃ under sterile conditions after reconstitution.
• Formulation: Lyophilized from a 0.2 μm filtered concentrated solution in 50 mm PB, pH 3.5, with 0.02 % Tween-20.