Bismarck brown Y
Pronunciation: biz′mark brown
Definition: A diazo dye used for staining mucin and cartilage in histologic sections, in the Papanicolaou technique for vaginal smears, and as one of Kasten Schiff-type reagents in the periodic acid-Schiff and Feulgen stains.
[Ger. bismarckbraun, after Otto von Bismarck, Ger. chancellor]
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Examples: glitazone, GI cocktail, etc.