The CD68 (D4B9C) XP ® Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to CD68. This antibody recognizes Homo Sapiens, Human, and Non-Human Primate antigen. The CD68 (D4B9C) XP ® Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, and Immunohistochemistry - fixed.