The demethylation of Methylene Blue in aqueous solution using heat and alkali produces a mixture of Azure A, Azure B, Methylene Violet and Methylene Blue.
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Gustav Giemsa improved this technique by standardizing the dye solutions and adding glycerol to increase stability.
The Human Stain | The Adventure of the Second Stain | Port-wine stain | naevus flammeus aka "port-wine stain" variety | '''Masson's trichrome''' stain of rat airway. Connective tissue | Masson's trichrome stain | Hoechst stain | Grocott's methenamine silver stain |