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Biotium Eosin-5-isothiocyanate
Supplier: Biotium 90091
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. Additionally, eosin is a good fluorescence acceptor for fluorescein (FAM), dansyl and coumarin dyes in fluorescence resonance energy transfer (FRET). Properties: Ex/Em (pH 9) = 521/544 nm; e = 95,000; Orange red solid soluble in DMF or DMSO; Store at -20°C and protect from light; C 21 H 7 Br 4 NO 5 S; MW: 704.96
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