The Insulin (C27C9) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to INS, and Insulin. This antibody recognizes Homo Sapiens, Human, Mouse, and Rat antigen. The Insulin (C27C9) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, and Immunohistochemistry - fixed.