The S100B (E9F2I) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to S100B. This antibody recognizes Homo Sapiens, Human, Mouse, and Rat antigen. The S100B (E9F2I) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.