The RABBIT ANTI HUMAN C4d Antibody from Bio-Rad (Formerly AbD Serotec) is a Rabbit Polyclonal antibody to C4A, C4B, complement component 4B (Chido blood group), copy 2, and C4B_2. This antibody recognizes Homo Sapiens, and Human antigen. The RABBIT ANTI HUMAN C4d Antibody has been validated for the following applications: Histology, Immunofluorescence, Immunohistochemistry, and Immunohistochemistry - frozen.