The IRF-4 (E8H3S) XP ® Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to IRF4. This antibody recognizes Homo Sapiens, Human, and Mouse antigen. The IRF-4 (E8H3S) XP ® Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.