F(ab')2-Goat anti-Mouse IgG (H+L) Cross-Adsorbed Secondary Antibody, Alexa Fluor™ Plus 555

F(ab')2 antibody fragments offer several benefits over whole IgGs, due to their smaller size (~110 kD vs. ~ 150 kD) and the absence of most of the Fc region. The smaller size allows for better penetration into tissue sections, resulting in improved stain