The IL-2Ralpha/CD25 (E9W2J) XP ® Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to IL2RA. This antibody recognizes Mouse antigen. The IL-2Ralpha/CD25 (E9W2J) XP ® Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunofluorescence, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.