The HER2/ErbB2 (D8F12) XP ® Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to ERBB2. This antibody recognizes Homo Sapiens, Human, and Mouse antigen. The HER2/ErbB2 (D8F12) XP ® Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: EIA, Immunoassay, ELISA, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.