Fluorescein-5-maleimide DYE-86

Fluorescein-5-maleimide

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Fluorescein-5-maleimide

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Cat.No. : DYE-86
Description : Fluorescein-5-maleimide is an activated fluorescent molecule (excitation: 494 nm, emission: 519 nm) that is used to easily conjugate fluorescein to proteins. The maleimide group reacts optimally with sulfhydryl groups on cysteine side chains at pH 7, forming a stable thioether bond. The compound can be used to label proteins for the detection of conformational changes, assembly of multisubunit complexes, and ligand-binding processes.
CAS number : 75350-46-8
Molecular Mass : 427.36
Formula : C24H13NO7
Ex(nm) : 493
Em(nm) : 515
Solvent : DMSO
Storage : Store at -20°C in the dark. Dessicated.

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