The Complement C4b Antibody from Thermo Fisher Scientific is a Rabbit Polyclonal antibody to C4B, complement component 4B (Chido blood group), copy 2, and C4B_2. This antibody recognizes Homo Sapiens, and Human antigen. The Complement C4b Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.