Thermo Fisher Scientific's Complement C4 Antibody is a Rabbit monoclonal antibody. The Complement C4 Antibody was generated using C4A, C4B, complement component 4B (Chido blood group), copy 2, and C4B_2 as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Immunocytochemistry, Immunohistochemistry, and Western Blot.