Immunohistochemistry (Paraffin) analysis of Tryptase in human colorectal cancer tissue using Tryptase Monoclonal Antibody (C2) (Product # MA5-51169) (40 µg/mL) and using PBS intead of the primary antibody as a control. The sample was then stained with HRP-Goat anti-Mouse IgG polyclonal secondary antibody (2 µg/mL). DAB staining.