The CD81 (D3N2D) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to CD81. This antibody recognizes Homo Sapiens, and Human antigen. The CD81 (D3N2D) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.