Rat Anti-Mouse IgM antibody [SB73a] (AP) Cat. No. GTX04225-03 Cat. No. GTX04225-03 GTX04225-03 ELISA Image ELISA analysis of purified mouse immunoglobulins using serially diluted GTX04225-03 Rat Anti-Mouse IgM antibody [SB73a] (AP). See all Mouse IgM products