The HDAC9 Rabbit mAb Antibody from Signalway Antibody LLC Monoclonal antibody to HDAC9, and Histone Deacetylase 9. This antibody recognizes Homo Sapiens, Human, and Rat antigen. The HDAC9 Rabbit mAb Antibody has been shown to work in the following applications: Immunohistochemistry, and Western Blot.