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methylene blue

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.03 sec.
methylene blue [′meth·ə‚lēn ′blü]
(organic chemistry)
Dark green crystals or powder; soluble in water (deep blue solution), alcohol, and chloroform; C16H18N3SCl·3H2O used in medicine; (C16H18N3SCl)2·ZnCl2·H2O used as a textile dye, biological stain, and indicator. Also known as methylthionine chloride.


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When a Stensen's duct injury is suspected, the duct may be cannulated and methylene blue may be gently injected into it.
Viable larvae remained motile and had an intact cuticle that could not be penetrated by the stain, whereas nonviable larvae took up the methylene blue along the cuticle and stained blue (8).
The sand was tested for compactability, green strength, green compression, permeability, methylene blue, LOI, split tensile and clay using AFS sand test procedures.
 
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