Safranine T is widely used as a biological stain in microscopy, particularly for highlighting cell nuclei and chromosomes in plant and animal tissues. It is also employed in histology to differentiate between various tissue types. In the textile industry, it serves as a dye for fabrics, providing vibrant red and pink shades. Additionally, it is utilized in analytical chemistry as a redox indicator in titrations, helping to detect the endpoint of reactions. Safranine T is also applied in the study of electrochemical processes due to its ability to act as a photosensitizer in dye-sensitized solar cells. Its antimicrobial properties make it useful in certain medical and research applications for inhibiting bacterial growth.