Goat anti-Human IgG Fc, Affinity Pure, min x w/bovine, horse, mouse or rabbit serum proteins or mouse IgG1, Unconjugated human igg goat fc chain anti-human antihuman gamma, Goat anti-Human IgG Fc, Affinity Pure, min x w/bovine, horse, mouse or rabbit serum proteins or mouse IgG1, Unconjugated