Anti-Mouse IgG(H+L), AlpSdAbs VHH(iFluor594) is designed for detecting mouse IgG(H+L) specifically, and Anti-Mouse IgG(H+L), AlpSdAbs VHH(iFluor594) is useful for super-resolution microscopy. Anti-Mouse IgG(H+L), AlpSdAbs VHH(iFluor594) is based on recombinant single domain antibodies to mouse IgG(H+L) coupled to iFluor594. Based on immunoelectrophoresis and/or ELISA, Anti-Mouse IgG(H+L), AlpSdAbs VHH(iFluor594) detects the heavy chain and light chain of mouse IgG selectively, no reactivity with rabbit, human, cynomolgus, rat, goat IgG.