Tetrazolium Violet is widely used as a redox indicator in biochemical assays to assess cell viability and metabolic activity. It is particularly valuable in microbiology and cell biology for its ability to form formazan, a colored product, when reduced by living cells. This property makes it a key component in assays like the MTT assay, where it helps quantify the number of viable cells in a sample. Additionally, it is employed in seed viability testing to determine the germination potential of seeds by staining metabolically active tissues. Its application extends to toxicity studies, where it helps evaluate the effects of chemicals or drugs on cell health.