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safranin O

Pronunciation: saf'ra-nin

Definition: A mixture of dimethyl- and trimethylphenosafranin chloride, a basic red dye that exhibits orange metachromasia; used in histology as a nuclear stain, in microbiology as a counterstain in the Gram method, and to demonstrate enterochromaffin.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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