The CD23 (E1R4G) Rabbit mAb Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to FCER2. This antibody recognizes Homo Sapiens, and Human antigen. The CD23 (E1R4G) Rabbit mAb Antibody has been shown to work in the following applications: Immunohistochemistry, and Immunohistochemistry - fixed.