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Product introduction

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 DCC) 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.

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Chinese name

荧光素-PEG5-酸

English name

Fluorescein-PEG5-Acid

Chinese alias

English alias

CAS number

2183440-40-4

molecular formula

C34H38N2O12S

molecular weight

698.8 g/mol

Exact mass

≥98%

PSA

Logp

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