The Human IL-33 Antibody from R&D Systems, a Bio-Techne Brand is a Rat Monoclonal antibody to IL33, and Interleukin 33. This antibody recognizes Homo Sapiens, and Human antigen. The Human IL-33 Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunohistochemistry, and Western Blot.