Bismarck brown Y
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Bis·marck brown Y(biz'mark brown), [C.I. 21000]
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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