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The 5-FAM modification incorporates a fluorescent fluorescein (FAM) moiety at the 5' terminus of an oligonucleotide. 5' FAM modified oligonucleotides can be used in a wide array of applications, including dual-labeled fluorogenic probes for real-time PCR. FAM is a xanthene dye and this product is prepared using the 6-carboxy fluorescein isomer. FAM fluoresces in the green region of the visible spectrum and its fluorescence can be effectively quenched by BHQ®-1 dye.

Properties:

  • Chemical Name:

    FAM

  • Formula:

    C27H24NO10P

  • Molecular Weight:

    553.45000000000005

  • Absorption Maximum (Lambda Max):

    495

  • Extinction Coefficient at Lambda max:

    71300

  • Extinction Coefficient at 260 nm:

    26900

  • Fluorescence Maximum:

    520

Product usage:

  • The mass this product adds after conjugation and work-up (the additional mass seen by mass spectrometry) is:

    537.45

Storage and handling: