United States Biological's Pab Rb x rat CD19 (Cluster Of Differentiation 19, B4, B-lymphocyte surface antigen B4, T-cell surface antigen Leu-12) antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: EIA, Immunoassay, ELISA, Immunocytochemistry, Immunohistochemistry, and Western Blot. The Pab Rb x rat CD19 (Cluster Of Differentiation 19, B4, B-lymphocyte surface antigen B4, T-cell surface antigen Leu-12) antibody was generated using CD19 as the antigen and it reacts with Rat.