Product Short Description: JENNER STAIN Product Description: JENNER STAIN excellent quality manufacturer, exporter and supplier. Jenner's Stain (methylene blue eosinate) is used in microscopy for staining blood smears.Jenner Stain Solution is a mixture of several thiazin dyes with both anionic and cationic properties used for staining blood. JENNER STAIN excellent quality manufacturer, exporter and supplier.