The Alcian Blue - PAS Stain Kit is intended for use in the simultaneous histological visualization of sulfated and carboxylated acid mucopolysaccharides, sulfated and carboxylated sialomucins (glycoproteins) and neutral mucins.Acidic Sulfated Mucosubstances: BlueHyaluronic Acid: BlueSialomucins: BlueNeutral Mucins: MagentaMixtures of Acidic and Neutral Mucins: Blue - Mauve depending on dominant entity.Kit contents: AAG125, Acetic Acid Solution (3%), 2 x 125 ml.ANC250, Alcian Blue Solution, pH 2.5 250 ml. PAQ250, Periodic Acid Solution (1%), 250 ml. SRF250, Schiff’s Solution, 250 ml.HMM125, Hematoxylin, Mayer’s (Lillie’s), 2 x 125 ml.