The COX IV (3E11) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to COX4I1. This antibody recognizes Homo Sapiens, Human, Rat, Bovine, Non-Human Primate, Porcine, and Zebrafish/Fish antigen. The COX IV (3E11) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.