Muci-10 Plus serves as the primary stain, producing pink to red epithelial mucins Hematoxylin acts as a secondary stain, producing blue to purple nuclei against a yellow background, counterstained by Metanil Yellow Kit is suitable in lieu of and comparable to the Mayer Mucicarmine method for staining mucins 100 mL Stain Kit yields between 80 and 100 slides 1 pt