Eosin B is sometimes used instead of Eosin Y ws in staining techniques. It is completely interchangeable, but gives a barely noticeable bluish cast instead of the yellow cast of Eosin Y. It is commonly used to compound Romanowsky stains.
The free radical of this dye, eosinol B, can be made from eosin B by treatment with hydrochloric acid. It is sometimes called eosin B, spirit soluble.
Compare the structural formulae of some eosin homologues.
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.
Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.
Edward Gurr, (1971)
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Susan Budavari, Editor, (1996)
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