Congo Red - Tiziano Stainer Kit for Tiziano, Ultra-Compact Special Stainer Kit supplies reagents for Congo red stain used for amyloid detection. Amyloidosis is a disease characterized by unsolvable and reduced-molecular-weight of protein deposit in extracellular position; known as amyloid. Amyloid has a β-sheet structure and looks whitish, homogeneous, transparent and fat at microscope examination. Amyloidosis may damage different organs as spleen (most frequently affected), kidney, brain and liver.