Creative Diagnostics' Mouse Anti-Human CD19 Monoclonal Antibody, clone FMC63 is a Mouse monoclonal antibody. The Mouse Anti-Human CD19 Monoclonal Antibody, clone FMC63 was generated using CD19 as the antigen. It reacts with Human. This antibody has been shown to work in applications such as: Flow Cytometry, and Immunofluorescence.