Name Human Interferon α-2b (INF-α 2b) Description Bioactivity is detected using cytopathic effect inhibition assay method, WISH cell (a heteroploid human amnion cell line) as dependent cell strain. The specific activity shall be not less than 2.0×108 IU/mg. Purity ≥ 97% (by SDS-PAGE and HPLC) Endotoxin ≤ 1 EU per mg of purified protein by LAL test Size 20 µg |