The IL-1beta (D3U3E) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to IL1B, and Interleukin 1 beta. This antibody recognizes Homo Sapiens, and Human antigen. The IL-1beta (D3U3E) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunofluorescence, and Western Blot.