The Complement Component 4 (C4) Polyclonal Antibody from AAA Biotech, LLC is a Rabbit Polyclonal antibody to C4B. This antibody recognizes Homo Sapiens, Human, and Mouse antigen. The Complement Component 4 (C4) Polyclonal Antibody has been shown to work in the following applications: Precipitation, Immunocytochemistry, Immunohistochemistry, Immunoprecipitation, and Western Blot.