polychrome methylene blue

polychrome methylene blue
a polychromatic mixture of several blue cationic thiazine dyes (including azures A, B, and C) and at least one uncharged dye, methylene violet Bernthsen; made by prolonged boiling of aqueous solutions of methylene blue, usually with alkali and sometimes with an oxidizing agent. It is commonly used as the cationic component of thiazine-eosinate stains.

Medical dictionary. 2011.

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  • methylene violet Bernthsen — an uncharged thiazine dye produced when methylene blue is converted to polychrome methylene blue. It is unrelated to various other dyes which are also called methylene violets …   Medical dictionary

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  • Wright stain — a mixture of eosin Y and polychrome methylene blue, used for staining blood smears and for detection of malarial parasites in the blood …   Medical dictionary

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