Cell Signaling Technology's 4-1BBL/CD137L/TNFSF9 (E8W3P) Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The 4-1BBL/CD137L/TNFSF9 (E8W3P) Rabbit mAb (BSA and Azide Free) Antibody was generated using TNFSF9 as the antigen. It reacts with Homo Sapiens, and Human. This antibody has been shown to work in applications such as: Immunohistochemistry, and Immunohistochemistry - fixed.