单词 | eosin |
释义 | eosin [`ē·ǝ·sǝn] ORGANIC CHEMISTRY 1. C20H8O5Br4 2. A red fluorescent dye in the form of triclinic crystals that are insoluble in water; used chiefly in cosmetics and as a toner. Also known as bromeosin; bromo acid; eosine; tetrabromofluorescein. 3. The red to brown crystalline sodium or potassium salt of this dye; used in organic pigments, as a biological stain, and in pharmaceuticals. |
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