Conventional ImmunoGold Reagents monodisperse size population makes the conjugates suited for multiple labeling with no overlap. The Conventional Immunogold Reagents are the classical conjugates in immuno electron microscopy; they are a good choice when the antigen is abundant and the accessibility of the antigen is relatively good. Conventional labeling approach in transmission and scanning electron microscopy utilizes secondary immunogold reagents based on particles that can be observed without enhancement. The particle population is monodisperse and thus shows minimal size variation and overlap. The reagents are supplied in PBS with 1% Bovine Serum Albumin and 15 mM NaN3.