Overview Reviews Product Description Complement Factor B 250 ug | 30C-CP2036U | Fitzgerald Product Videos Custom Field Size 250 ug Research area Immunology Species Human Source Human serum/plasma Form Supplied as a liquid in PBS, pH 7.2, no preservatives added, Storage Aliquot and store at -70 °C or lower. Avoid repeated freeze/thaw cycles. Shipping Dry Ice Product Reviews Write a Review Write a Review × Complement Factor B 250 ug Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *