Anti-Human IgM, AlpSdAbs® VHH (HRP) is designed for detecting human IgM specifically. Anti-Human IgM, AlpSdAbs® VHH (HRP) is based on monovalent, recombinant single domain antibody to human IgM coupled to HRP. Based on immunoelectrophoresis and/or ELISA, Anti-Human IgM, AlpSdAbs® VHH (HRP) reacts with human IgM chain selectively, no reactivity with human IgG, IgA, IgD, IgE.