Used primarily as a dye intermediate in the textile industry, this compound serves in the production of green-colored dyes for fabrics. It is also employed in forensic science to detect the presence of blood, where it reacts with hemoglobin to produce a visible color change. Additionally, it has been used in aquaculture as an antimicrobial agent, though such use is restricted in many countries due to toxicity and residue concerns. Its application in biological staining allows for microscopic examination of tissues and cells, particularly in histology labs.