Brilliant Green is widely used as a dye in microbiology for staining and identifying bacterial cultures. It is a key component in selective media, such as Brilliant Green Agar, which is specifically designed to isolate Salmonella species from clinical and food samples. The dye inhibits the growth of Gram-positive bacteria and certain Gram-negative organisms, allowing for the selective growth of Salmonella. Additionally, it is employed in histology for staining tissue samples, aiding in the visualization of cellular structures under a microscope. Beyond its biological applications, Brilliant Green is also used in the textile industry for dyeing fabrics, providing vibrant green hues. Its antiseptic properties have led to its use in topical formulations for treating minor skin infections and wounds, although this application has declined with the advent of more modern antiseptics.