Fast Red GTR Base is widely used in the histology and pathology fields as a staining agent. It is particularly effective in enzyme histochemistry, where it helps in the visualization of alkaline phosphatase activity in tissue samples. This chemical is also utilized in the preparation of chromogenic substrates for immunohistochemistry, aiding in the detection of specific proteins or antigens in biological tissues. Additionally, Fast Red GTR Base finds application in molecular biology for labeling and tracking nucleic acids during gel electrophoresis and blotting techniques. Its ability to produce a vibrant red color makes it a valuable tool in various diagnostic and research applications.