The ICOS (E5F7E) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to ICOS. This antibody recognizes Mouse, and Rat antigen. The ICOS (E5F7E) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Immunofluorescence, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.