R&D Systems, a Bio-Techne Brand's CD21 Alexa Fluor 488-conjugated Antibody is a Mouse monoclonal antibody. The CD21 Alexa Fluor 488-conjugated Antibody was generated using Cr2 as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Flow Cytometry.