Cell Signaling Technology's DARPP-32 (19A3) Rabbit mAb (BSA and Azide Free) is a Rabbit monoclonal antibody. The DARPP-32 (19A3) Rabbit mAb (BSA and Azide Free) Antibody was generated using PPP1R1B as the antigen. It reacts with Mouse, and Rat. This antibody has been shown to work in applications such as: Immunohistochemistry, Immunohistochemistry - fixed, and Western Blot.