The beta-Arrestin 2 (C16D9) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to ARRB2, and Arrestin beta 2. This antibody recognizes Homo Sapiens, Human, Mouse, Rat, and Non-Human Primate antigen. The beta-Arrestin 2 (C16D9) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.