- 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. 2011.
methylene violet Bernthsen
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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… … Medical dictionary
