The IL1β Rabbit pAb (APR18432N) Antibody from Leading Biology is a Rabbit Polyclonal antibody to IL1B, and Interleukin 1 beta. This antibody recognizes Human, Mouse, and Rat antigen. The IL1β Rabbit pAb (APR18432N) Antibody has been shown to work in the following applications: Immunofluorescence.