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5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE) ≥90% (by HPLC) fluorescent dye, Pierce™

Supplier: Paul Schöndorf Metallwaren GmbH
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46409 46410
PI46409EA 866.46 USD InStock
PI46409 PI46410
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE) ≥90% (by HPLC) fluorescent dye, Pierce™
5(6)-Carboxyfluorescein N-hydroxysuccinimide ester (5/6-FAM SE)
NHS fluorescein [(5/6-carboxyfluorescein succinimidyl ester), mixed isomer] is an amine reactive derivative of fluorescein dye for antibodies and other probes in fluorescence microscopy, flow cytometry, and immunofluorescence based assays such as western blotting and ELISA.

  • Label antibodies for use as immunofluorescent probes
  • Label oligonucleotides for hybridization probes
  • Detect proteins in gels and on Western blots

NHS fluorescein is activated with the N-hydroxy-succinimidyl-ester (NHS ester) functional group. These fluorescein dyes are mixtures of isomers with reactive groups attached at the 5 and 6 positions of the bottom ring. The properties of these isomers are indistinguishable in terms of excitation and emission spectra and for protein applications there is no need to isolate a specific isomer.

Precaución: For Research Use Only. Not for use in diagnostic procedures.


Formula: C₂₅H₁₅NO₉
MW: 473.39 g/mol
 MDL Number: MFCD04119713
CAS Number: 117548-22-8
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