Description
5/6-Carboxy-Erythrosin B: Non-Activated Red Dye and Singlet Oxygen Generator for Bioconjugation
5/6-Carboxy-Erythrosin B is a non-activated red fluorescent dye and efficient singlet oxygen generator, used for covalent labeling of proteins and alkylamino-modified nucleic acids. As a mixed-isomer form of erythrosin B, it is particularly suited for applications requiring photoactive properties and robust labeling performance.
Performance Highlights
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Excellent singlet oxygen generation
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Red fluorescent dye with strong absorption at 527 nm
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Stable powder form for easy handling and storage
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Ideal for covalent labeling via free carboxylic acid functionality
Properties
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Molecular Weight: 879.9
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Empirical Formula: C₂₁H₈O₇I₄
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Absorption: 527 nm ± 3
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Appearance (colour): red
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Appearance (form): solid (powder)
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Storage: –20 °C. Store under argon. Keep dry. Protect from light, especially in solution
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Reactive Moiety: free carboxylic acid
Application
Bioconjugation
