This product is an affinity-purified mouse anti-human IgG (Fc) antibody, with a titer (ELISA) of >1:400,000. It exhibits excellent immunoreactivity with human IgG (Fc) and shows no cross-reactivity with human IgM, human IgA, or other immunoglobulins. It is suitable for scientific research applications such as ELISA, IHC, and Blot.