The Keratin 19 (D7F7W) Rabbit mAb (BSA and Azide Free) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to Keratin 19, and Krt19. This antibody recognizes Homo Sapiens, and Human antigen. The Keratin 19 (D7F7W) Rabbit mAb (BSA and Azide Free) Antibody has been shown to work in the following applications: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.