The Rabbit (DA1E) mAb IgG XP ® Isotype Control (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody. The Rabbit (DA1E) mAb IgG XP ® Isotype Control (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, and Immunohistochemistry - fixed.