“…1), a close analogue of azure A, finds application in staining DNA [29], blood products, epithelial tissues, proteins, viruses, lignins, melanin, keratin fibers and malaria-infected cells. This dye also possess diverse biological activities and is useful in the treatment of avian influenza, protozoan infections, viral diseases, pathological tau-tau association in Alzheimer disease [30] nail infection, [31] diagnosis of amyloid accumulation related disease, [32] diabetes, [33] malignant melanoma, oral cavity infection, neurodegenerative diseases and in the detection of oral cancer.…”