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Fluorescein-PEG4-Acid


Fluorescein-PEG4-Acid

Catalog:CDPB-04810

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INQUIRY Datasheet

Common UseFluorescein-PEG4-Acid is a xanthene dye with excitation/emmission maximum 494/517 nm and a free terminal carboxyl acid. Terminal carboxylic acid can react with primary amine groups in the presence of of activators (e.g. EDC, or DCC) to form a stable amide bond. It be used as quantum yield standard. Hydophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.
Structure Fluorescein-PEG4-Acid
PEG Molecular Weight654.7 g/mol
Functional GroupCarboxylic Acid
Purity96%
Storage-20°C in the dark
FluorophoresFluorescein
Molecular FormulaC32H34N2O11S
CAS No.1807518-76-8
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