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Fluorescein-PEG5-Acid

Catalog Number DYE-FLU-0069
CAS Number 2183440-40-4
Description Fluorescein-PEG5-Acid is a xanthene dye with excitation/emission maximum of 494/517 nm and a free terminal carboxyl acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. It be used as quantum yield standard. Hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.
Molecular Weight 698.8 g/mol
Molecular Formula C34H38N2O12S
Purity 98%
Solubility Water, DMSO, DMF, DCM
Application For Industrial and laboratory use
Storage -20°C
Emission Maximum 517 nm
Excitation Maximum 494 nm
Shipping Ambient temperature

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