• 曙红Y(水溶) 指示剂
  • W42003 17372-87-1

    Eosin Y water solution

产品订购
产品货号重量货期 优惠价 数量
W42003-25g 25g 准现货 询价
  • 产品信息

属性

溶解性 易溶于水,稍溶于醇,不溶于醚,浓的水溶液为深棕红色,其稀溶液(1:501)为黄红色显绿色荧光,醇溶液有很强的绿色荧光。
敏感性 对湿度敏感
存贮条件 密封保存。
密度 1.0150
荧光
IC50
pK Values

描述

别名 伊红 Y 二钠盐;四溴荧光黄;曙红Y;曙红微黄;酸性红87;水溶伊红;朝红;四溴荧光素二钠;曙红钠盐;2‘,4‘,5‘,7‘-四溴荧光素 二钠盐;Red No. 22;Eosin yellowish;Eosin Y disodium salt;Tetrabromo(R)fluotrsein sodium salt;Tetrabromofluorescin soluble;9-(o-Carboxyphenyl)-6-hydroxy-3-H-xanthene-3-one disodium salt
产品介绍 Eosin Y, a red xanthene dye, has been noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 μM. At higher concentrations near 100 μM the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be a photosensitizer that works as a molecular photoelectrode via catalyzation of the visible-light-driven electron-transfer reaction. Eosin Y has been used to stain structures such as muscle, cytoplasm, and collagen. This agent also enhances fluorescent quenching abilities by forming a complex with polyvinulpyrrolidone.
用途 用作生物染色剂。 也用作吸附指示剂, 用于沉淀滴定测定Br-、I-、SCN-、MoO 、Ag+等。用作显色剂,用于荧光光度法测定Ag+、Pb2+、Mn2+、Zn2+等。

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