Cell Signaling Technology's CD40 (D8W3N) Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The CD40 (D8W3N) Rabbit mAb (BSA and Azide Free) Antibody was generated using CD40, and CD40 molecule as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.