- 询价
- Biotium
- 美国
- 90091
- 2025年09月06日
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- 详细信息
- 文献和实验
- 技术资料
- 英文名：
Eosin-5-isothiocyanate 90091
- 库存：
99
- 供应商：
Biotium
- CAS号：
1
- 保存条件：
-20°C避光
Eosin-5-isothiocyanate is a good photosensitizer and can be used to selectively label amines. It has a quantum yield of 0.57 for singlet oxygen generation, which makes it useful for photoconversion of electron-rich materials such as diaminobenzidine (DAB) or fluorescent dyes into highly electron-dense materials for high resolution electron microscopy studies (1,2). Additionally, eosin is a good fluorescence acceptor for fluorescein (FAM), dansyl and coumarin dyes in fluorescence resonance energy transfer (FRET).
- λEx/λEm (pH 9) = 521/544 nm
- ε = 95,000
- Orange red solid soluble in DMF or DMSO
- Store at -20°C and protect from light
- C21H7Br4NO5S
- MW: 704.96
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文献和实验, and therefore cannot be used for analysing nonradiolabeled O -phosphoamino acids in biological samples. Furthermore, some of them show poor resolution or low sensitivity. HPLC methods based on the precolumn ultraviolet (UV) derivatization with phenyl isothiocyanate (22 –24
CY3.18 554 568 CY5.18 649 666 CY7 710 805 DANS (1-DimethylAmino-Naphthaline-5-Sulphonic Acid) 340 525 DANSA(DiaminoNaphthyl-Sulphonic Acid) 340-380 430 Dansyl NH-CH3 in water 340 578 DAPI 350 470 DiA 456 590 Diamino PhenylOxydiazole (DAO) 280
荧光是指一个分子或原子吸收了给予的能量后即刻引起发光，停止能量供给，发光也瞬时停止（一般持续10-7～10-8s）。可以产生明亮荧光的染料物质，称荧光色素。目前主要常用的荧光色素有以下3种： （一）异硫氰酸荧光素（Fluorescein isothiocyanate, GITC） 呈黄色、橙黄或褐黄色粉末或结晶，性质稳定，在室温下能保存2年以上，在低温中可保存多年。易溶于水和酒精。最大吸收光谱为490～495nm，最大
