Cytokeratin 20 (G-20): sc-17113. Immunoperoxidase staining of formalin fixed, paraffin-embedded human small intestine tissue showing cytoplasmic and membrane staining of glandular cells.Detection reagent used: mouse anti-goat IgG-B: sc-2489. Cytokeratin 20 (G-20): sc-17113. Immunoperoxidase staining of formalin fixed, paraffin-embedded human small intestine tissue showing cytoplasmic and membrane staining of glandular cells.Detection reagent used: mouse anti-goat IgG-B: sc-2489.