Thionine, also known as Lauth's violet, is the salt of a heterocyclic compound. It was firstly synthesised by Charles Lauth. A variety of salts are known including the chloride and acetate, called respectively thionine chloride and thionine acetate.

What is the meaning of Thionine?

thionin (ˈθaɪənɪn)

/ (ˈθaɪəʊˌniːn, -ˌnaɪn) / noun. a crystalline derivative of thiazine used as a violet dye to stain microscope specimens. any of a class of related dyes.

What is thionine used for?

Thionine is a strongly staining metachromatic dye, which is widely used for biological staining. Thionine can also be used in place of Schiff reagent in quantitative Feulgen staining of DNA. It can also be used to mediate electron transfer in microbial fuel cells.