This product is useful as an isotype control for rabbit IgG. In all assays tested, we have not observed any significant non-specific binding from this antibody. This includes flow cytometry, Western blot, ELISA, and biolayer interferometry (Octet). We obtained this antibody from a mouse immunized with keyhole limpet hemocyanin (KLH). This antibody binds to specifically to KLH, an antigen not expressed on human cells, mouse cells, or other species. In contrast to isotype antibodies supplied by other vendors, which have unknown or unreported specificity, we let you know the target of this antibody so that you can determine if it is suitable as a control for your specific assay.