This product is an affinity-purified goat anti-mouse IgM antibody, specifically reactive with mouse IgM, with a titer (ELISA) >1:400,000. It shows no cross-reactivity with mouse IgA, IgG1, IgG2a, IgG2b, IgG3, human IgG, rabbit IgG, or other classes/subtypes. It is suitable for scientific research applications such as ELISA, IHC, and Blot.