Chemical Properties
odourless green to reddish-brown solid
Uses
Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.
Uses
Dyeing wool, cotton, and paper. In histology as a stain for epithelia, muscular fibers, nuclei, etc.
Definition
ChEBI: An organic sodium salt which is the disodium salt of eosin b diphenol.
Preparation
will 4′,5′-Dibromofluorescein?(C.I. Acid Orange 11, C.I. 45370) nitrification, and translated into sodium salt or ammonium salt.
Purification Methods
Free it from inorganic halides by repeated crystallisation from butan-1-ol. [Beilstein 19/6 V 469.]
Properties and Applications
colourful red blue light.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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3
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3
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3
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3
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3
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