The Periodic Acid Schiff (PAS) Stain Pack is intended for use in histological demonstration of lymphocytes and mucopolysaccharides. PAS staining may also be used for the demonstration of fungal organisms in tissue sections. PAS Positive Material:Magenta Nuclei:Blue Background:Light Green Pack Includes: Periodic Acid Solution (1%), 500ml Schiff's Solution, 500ml Hematoxylin, Mayer's (Lillie's Modification), 500ml Bluing Reagent, 500ml Light Green Solution, 500ml