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methylene blue

Pronunciation: meth'i-len blu

Definition: A basic dye easily oxidized to azure with dye mixtures; used in histology and microbiology to stain intestinal protozoa in wet mount preparations, to track RNA and RNase in electrophoresis, and as an antidote for methemoglobinemia; its redox indicator properties are useful in milk bacteriology.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.