The Methyl Green kit consists of two main components: Methyl Green Stock Solution A (Item No.: 11480A) and Methyl Green Stock Solution B Acetate Buffer (pH 4.8, Item No.: 11480B). The combination of these two solutions allows the use of methyl green staining in histology and cytology. Methyl green is a basic dye that binds primarily to nucleic acids, especially DNA, producing a green stain. The stain is useful for visualizing cell nuclei and other structures with high DNA content. The acetate buffer in Stock Solution B ensures an optimal pH for staining and contributes to the stability and reproducibility of the staining results.