The C4d Recombinant Rabbit mAb (SDT-R021) Antibody from AntBio is a Rabbit Monoclonal antibody to complement component 4B (Chido blood group), copy 2, and C4B_2. This antibody recognizes Homo Sapiens, and Human antigen. The C4d Recombinant Rabbit mAb (SDT-R021) Antibody has been shown to work in the following applications: Immunohistochemistry, and Immunohistochemistry - fixed.